How to control squash bugs

Squash bug adult-photo courtesy University of Minnesota

Well it’s that time of year-Squash bugs Ughh! You can control squash bugs in your organic garden. Here are some ORGANIC things you can do to deter squash bugs:

-Plant a crop late in the season if possible. Many areas of the country only have one generation of squash bugs and if you plant later you may miss them. If you live in the south where they have 2 generations, read on..

squash bug nymphs-photo courtesy University of Minnesota

Cover your plants with row cover to keep them off. This works beautifully but you may have to piece some row covers together to cover some of the larger plants. I use clothes pins to clip them together.

-Use Neem. It is an organic pesticide (and an added benefit is a fungicide). It must be sprayed very early before the bees come out or at dusk when they aren’t around as it won’t hurt them if it is not a direct hit as they only visit the flowers and it is a contact spray. I think it mostly helps deter the squash bug.

squash bug eggs

-Inspection, hand picking and kill the little buggars. (now you know how strongly I feel about them) By far the most labor intensive but very effective. I hate to handle squash bugs (or any bug-I’m squeamish) so I use gloves, a bucket of soapy water (it drowns them) and inspect each leaf underneath to look for nymphs, eggs, or adults. The adults I throw in the soapy water and if a leaf is really loaded with nymphs, I cut it off and throw it in the soapy water otherwise I just squish them. For the eggs  (they are a cluster of rust colored eggs attached to the underneath side of the leaves) I usually just tear off  or cut out that portion of the leaf (it won’t hurt it) and throw them into the soapy water. The key to keeping it under control, is to catch them before they multiply too much. I looked up the life cycle online of the squash but and it goes from egg to nymph in 7-10 days so if you get out there every 7 days you will catch them before they get out of control and multiply. Most people wait too late. Get out there and look at your plants!

-Companion planting. I think it was in ‘Organic Gardening Magazine that I read under ‘letter to the editors’, that a lady wrote in to say that you could deter squash bugs on pumpkins, winter squash, summer squash and marrows with diluted/strained onion juice. Evidently just grind one or two up, put it in gallon of water and strain the onions out so your sprayer doesn’t clog. Well she went on to write that doing that was too much work and she plants onions bulbs with her squash every year and hasn’t seen a squash bug since. Well I did the same for my summer squashes, but not for my winter squashes. There have been no squash bugs on the summer squash but I found one on the marrow which means there will be more. I told one of friends that owns a garden nursery about the onions and he said it was too late to plant onions but he was going to throw some chopped onions out in his patch. I’m doing the same today for the marrow and winter squash and will let you know what happens! It can’t hurt and maybe it’ll work!

Baby giant pumpkins are putting on weight

I actually measured the baby pumpkin on the N. Harp main vine yesterday and today because it is starting to grow (at least for now). It is about the size of a soccer ball now. Circumference was 27″ yesterday and today it was 28.5″. A gain of 1.5 inches in 24 hours . This evening I measured using the OTT method which is more accurate and Harp’s total measurement was 51.5 and the 895 Grande main was 47 OTT. The measuring chart doesn’t go down that low so I’m not sure how much they weigh yet  but should sometime this week as they start to really grow.

organic fungicides to use for Powdery Mildew

We’ve been getting so much rain lately that I am worried about Powdery Mildew (PM) and other fungal and bacterial diseases caused by too much rain. It is a blessed curse. The garden takes off  and really grows from all the rain but the conditions are right for PM so I am trying to take precautions by doing several things to be as preventative as possible.

First I’m cleaning out all dead or yellow leaves that are usually underneath the canopy of the squashes and beans and tomatoes. I use clippers to cut out the dead stems  or yellow leaves (like on the tomatoes) and I sterilize them between each plant so not to spread any diseases that the plant may have that I don’t know about yet. The idea is to clean up under the canopy of  leaves and provide more air space. I have a small container that I fill with 4 cups of water and I put in about 1/4 cup bleach and use this as a disinfectant for my clippers and gloves. I just dip my clippers and hand with my glove into the container and then move onto the next plant. You can use isopropyl alcohol instead but you could go through a lot of alcohol and the bleach works just as well. The next thing I do is spray weekly with Neem and baking soda or instead use copper fungicide which is stronger but still organic. I think the Neem and baking soda are more preventative and if you get some fungal diseases then the copper can kill it. Copper is organic but one still needs to follow the directions but you can spray it right up to the day of harvest. All of these need to be sprayed on both the top and underneath the leaves and have to be resprayed if it rains. The third thing I’m doing this year is using a biofungicide that is used as a drench. This is new to me but it is just certain soil organisms that help the plant ward off many fungal and bacterial diseases. I’m using it on my giant pumpkins and will let you know how they do. Another biofungicide is Mycostop which is also suppose to do the same thing. There may be others out there, just google biofungicides.

Giant Pumpkin Sex 101a

Ok, here’s the skivvy on giant pumpkin sex 101. I’ve been talking about giant pumpkin pollination a lot and have been giving bits and pieces of info and so want to be clear about WHY we choose to pollinate them and HOW we hand pollinate giant pumpkins.

First WHY do we pollinate them?

If I was growing regular pumpkins I wouldn’t pollinate them, I’d just let the bees do it but giant pumpkin growers want to know what genetic material is being passed from the male flower to the female flower of a pumpkin. why? Because it doesn’t affect this season’s pumpkin, but the next year’s seeds of that pumpkin. That way we can grow bigger pumpkins,  prettier pumpkins, oranger pumpkins, rounder pumpkins, etc. next year. If we let the bees do it, we wouldn’t know which pumpkin plant the pollen came from as the bees visit many flowers from many plants.

So we grow several different pumpkins from seeds from different giant pumpkin growers. For instance, I have 3 growing right now and one that I hand pollinated  the other day was from the seed of a 895 lb pumpkin seed grown by a grower named Grande in 2009 (hence it is called an 895 Grande 09) and I crossed that female flower with the male flower from a seed of a 945 lb pumpkin seed grown by a grower named N. Harp in 2010 (hence it is called 945 N.Harp 10). Why would I do it? I’m trying to cross 2 top notched pumpkins and see what I can get. I hope to get a round really orange pumpkin with great weight. The 895 Grande was really pretty but the 945 N. Harp came from great genetics. I know which pumpkins they came from because those growers list that with their seed. I can also look up the grandparents as well. If we let the bees do it, we would not have this information to help us decide.

Second question is HOW we do we hand pollinate the female flower?

male flower side view

female flower side view

First all pumpkins produce both male and female flowers on each plant. The male flowers show up first and then the female flowers start showing up. I watch the closed green female flowers closely for when they start to get big and slightly yellow orange on the tip of the flower but the flower is still closed. When I see that, I know it will OPEN THE NEXT MORNING. So I cover it the night before  and  some male flowers as well so the bees won’t get to it first with unknown pumpkin pollen. Then I get up EARLY the next morning as we have a 4 HOUR

male flower inside with stamen

female flower inside with stigma

WINDOW TO POLLINATE THE FEMALE

FLOWER, (GENERALLY 6-10AM) and find some newly opened MALE flowers (or uncover the ones from the night before) from the plant I want to cross the female flower with. It could be from the same pumpkin plant or a different one. Now remember we can tell the female flowers because it looks like a little pumpkin is attached at the base of the flower while the male flowers are on skinny stems only. See pictures. Also the inside of male and female flowers are different and when the flowers are open you can see the differences. Male flowers have stamens  (kind of look like a penis-I told you we would talk sex) that have the pollen on it which looks like grains of powder all over it. The female flowers have a stigma (think vulva) and if the timing is right (remember 4 hour time period) will accept the pollen from the male flower.

male flower with petals peeled off revealing the stamen

So as a giant pumpkin grower I take a male flower and peel off the petals leaving the stamen and take that flower and brush the stamen loaded with pollen like a paintbrush on the inside of the stigma and also around the outside of the stigma as well. Then I close up the female flower with a twistie so no other pollen can get in. I keep it closed for one day and take off the twistie afterwards and wait to see if the pollination takes which could take quite a few days. Sometimes they abort when they are a little smaller than the size of a basketball.

male stamen pollinating female stigma like a paintbrush

Inside each female flower are many immature eggs waiting inside immature seeds holding half the genetic material. The pollen holds the other half of the genetic material. If the female receives the pollen, the pollen will germinate and move down inside the stigma to the egg within an immature seed and fuse its genetic material with the genetic material of the egg stored  in that immature seed inside that tiny pumpkin. PRESTO! FERTILIZATION has taken place. Every egg fertilized becomes a a viable future seed. And every seed fertilized holds the genetic material for a future pumpkin If not enough pollen as passed, the baby pumpkin will self abort. (or if it is too hot-90 degrees or hotter, they can abort too) COOL, HUH?!  The so next time you need to talk to your kids about sex, you can talk pumpkin sex as an example!

Ok, have I given you too much info? I figure this way we won’t have to go over this again.!

giant pumpkin flower pollinated!

945 N. Harp 5 segment stigma

So the 945 N. Harp pumpkin flower that I said was almost ready to open, did this morning as pictured above. That was really fast to open. So I got some male flowers off the same plant that had pollen and broke them off, stripped away the petals and used them like a little paintbrush to go all around the outside and also inside the stigma. Notice this stigma has 5 segments. Most big pumpkins have 4 or 5 segments and some have 6 but many of the six segment ones abort due to insufficient pollination.

female flower with male flowers around it after hand pollination

The next picture is of the flower after I hand pollinated it with the ‘spent’ stamens in front of it. I almost feel like smoking a cigarette!

The last picture is where I closed up the flower with a twistie tie so the bees won’t accidentally pollinate it with another pumpkin’s pollen. By controlling pollination, I try to control (somewhat) what the future seeds of the pumpkin will be but it won’t affect this year’s pumpkin and what it will look like only it’s seeds.

pollinated giant pumpkin flower closed with twistie

I will cross pollinate some of the other female blossoms with some of my other pumpkin plants to see what the next generation’s seeds will produce next year. But this one I self pollinated it. So on the same pumpkin plant you could have some pumpkins that were self pollinated and others that were pollinated with other pumpkin plants.

Pumpkin female blossoms!

945 N. Harp female blossom almost ready to open-tip turning yellow

Last week I saw a bunch of male flowers, still small and closed but no female flowers. Yesterday I saw some baby female flowers with their baby fruit attached. Yea! Finally!

945 N. Harp female blossom not ready to open-blossom green

Yesterday I noticed the female blossoms are still small and closed but the male flowers are now blossoming and ready for the girls! There are two female blossoms on the main vines and 7 more on secondary vines. The picture on top is almost ready to open as the blossom is just starting to turn a subtle yellow color on the tip. In the other blossom pictures in this post, the blossoms are still very green and will open later. I will pollinate all of them when they are ready and see what I get.

895 Grande female flower

Look how different the shape of the baby pumpkins are on the different pumpkin plants! The 945 N. Harp pumpkin flowers have round little pumpkins attached and the 895 Grande pumpkin flower has an oval shaped pumpkins attached. I think that is so cool that you can start to see the future pumpkin shapes even on the blossoms.

Even though the blossom looks like it has a baby pumpkin attached to it, it still needs to be pollinated which happens after the flower opens. Some will abort if pollination is not complete or if the weather is too hot. I hope the females open this week as the weather is suppose to be perfect for pollination-80’s all week. Not too hot. Anything over 90 is problematic for pollination.

Bacterial wilt on tomato

tomato bacterial wilt

Here is a picture of one of my tomato plants that was fine one day and the next day it was wilted and dead. I think it was baterial wilt which comes from a leafhopper. Leafhoppers carry bacterial wilt virus and when the taste the tomato they infect it. Notice the other tomato plants around it are ok. I hope I don’t get more..

Can you find the tomato hornworm?

tomato hornworm hiding

Found another tomato hornworm this evening and I got 2 really great shots of it before it’s funeral. Can you find it in the picture above?

Here is a close up of it. They really are hidden aren’t they? That’s why they are so hard to find!

tomato hornworm revealed

tomato hornworm attack!

tomato hornworm courtesey of W.S. Crenshaw/Colorado State University

I’ve found some tomato hornworms in the garden this morning. I picked them off and gave them to the chickens. Here is some information about them. This pale green caterpillar has white and black markings, is 3 1/2 to 4 inch long and is the larval stage of the Sphinx moth.

sphinx moth courtesey of W.S. Crenshaw/Colorado State University

It is also called the hawk moth or hummingbird moth.  It is called the hummingbird moth because of it’s long “beak” which is not really a beak at all, but a slender, tubular feeding and sucking organ. It is not a hummingbird but an insect. It is a grayish-colored moth with a wing spread of 4 to 5 inches. I see it visiting my flowers at dusk and at night. It is attracted particularly to purple flowering plants. The moth is not harmful to your plants only as the larva caterpillar-the tomato hornworm. A friend of mine called me to say her plants were being visited by the Monarch Butterfly and wanted to know if they would hurt her tomatoes. The answer is no, the Monarch Butterfly lays it eggs on milkweed and when it is a caterpillar feeds on milkweed and feeds on nectar from other plants when it is an adult.

I noticed a couple of things about the hornworm today. First I got out early and caught it sleeping. At least I think it was sleeping as it didn’t move for a long time and it was still really chilly outside (I thought maybe it needed warmth to get up and going or perhaps it had a hangover from eating so many tomato leaves!). The first thing I do after looking to see if the plants look good (as in no disease showing up) is to see if any of the leaves are eaten. The hornworm usually start feeding from the highest part of the plant first. If I see that, then I also look for their poop (called frass) which are quite large pellets about 1/8 inch in size. You can see it sometimes on the branch or on the ground. The hornworms are hard to see as they blend in so well with the foliage but keep looking around the damaged areas and you will find them. Anyways the 3 times I’ve seen them so far this year, they all hang upside down on the tomato branch-so look for them that way. I don’t like to handle them with my bare hands. I usually have gardening gloves on so I’m not so squeamish about picking them off. They are so large they give me the creeps but they are quite beautiful. I will have to do more inspections to catch them.

I luckily haven’t had huge amounts of them so I prefer handpicking them but if I found I had tons of them, I would spray with Bt for caterpillars. Bt is short for Bacillus thuringiensis. It is a live bacteria that kills caterpillars only. It doesn’t harm bees, or birds or humans-only caterpillars. It is perfectly safe for organic growers. When the caterpillar takes a bite of your leaf, it dies. It interferes with their digestive system. You can buy it at a nursery. Usually the big box stores don’t carry it. The only bad thing about Bt, is that is washes off with the rain and must be reapplied.

hornworm with wasp cocoons

The other thing that is helpful comes from nature itself.  If you see little white cocoon things on the hornworm, leave them alone as a helpful parasitic wasp has layed their eggs on them and the caterpillar will soon die. An added bonus is all the little wasps will attack other hornworm caterpillars. The wasp is not like the wasp we think of that stings us. It is a little thing, almost fly like, doesn’t sting us and is one of those beneficial bugs you would like to have in your garden.

Giant tomato

Here is a picture of one of my giant tomatoes on it’s way to stardom. (I hope!)

baby giant tomato

Notice this tomato looks deformed and gnarly. It has 4 little tomatoes that have fused together-kinda like Siamese twins only this one is quadruplets! Most giant tomatoes are a result of a megablossom where 2 or more blossoms fuse together. Many megablossoms do not pollinate fully and so they have a higher self abort rate. So far this one is doing well. I have a few other megablossoms right now but not many. Some varieties produce more megablossoms and hence more giant tomatoes. Two varieties that have the potential of producing giant tomatoes are Delicious and Big Zac. There are other varieties that can produce giant tomatoes too. This one in the picture comes from a Nick Harp tomato seed. His plant grew a 7 lb+ tomato last year and he gave me a few seeds. I call his plants the ‘Harpies”! I have 5 growing right now. Hope this one becomes a monster! Since I’m an organic grower I’ve been feeding it fish and seaweed fertilizer from the Neptune brand.

tomato suckers

tomato sucker

Don’t forget to pinch out the suckers on your tomatoes. Some people say pinch them and some say not to. I am in the camp of pinch them. I might try to leave one with suckers on to see how they differ throughout the season next year but they are all pinched or will be pinched soon this year! Where a branch comes off the main vine and in the crotch or ‘v’  where the two branches meet is a little branch that starts-this is a sucker and if left to grow will help contribute to unruly growth. The sucker in the picture is starting to get big and needs to be pinched out. You’ve probably had some tomatoes that were out of control growth wise. If you don’t pinch it out, your plant can become monstrous. I need to take them off weekly. Notice I said need..I’m having my friend, Lava, come over next week who loves to pinch off the suckers-that should be a big help! Pinching is not a one time job but if you start early you can keep up on it. Keep looking at the new growth so you can pinch them when they are small. Otherwise take some scissors to cut them out if they get too big on you. Just remember to disinfect your scissors or hands with a little alcohol in between plants so as not to pass any diseases from one to another.

got some tomatoes!

first black pear tomato

Got my first 4 tomatoes! They are off a black pear tomato plant. They don’t look pear shape I but I don’t care. I’ve lost 3 pepper plants and one tomato plant in the main garden but other then that, everything else is doing great. The tomato plants are really taking off- some of the early varieties have little tomatoes on them but most are just starting to blossom except for those first two maters!.

tomato in cage with well

In the pictures you can see they now all have wells, drip system in the wells, and the wells are covered with straw (not hay-produces too many seeds) to help with evaporation and keep the roots cool.

The tomato plants have been trimmed up so no branches touch the ground or straw. This is so no soil borne diseases can be transmitted. When you trim plants, put some alcohol on your trimmers between each plant so if one is diseased it won’t be transmitted to the next one.

I have a bamboo post (sometimes more than one) where the main vine is tied to help it as it grows so as not to be unruly (mine usually become unruly anyways as the season goes on).

The big tomato cages that I made from concrete reinforcement wire (it has 6 inches by 6 inch holes-easy to get your hand through to pick tomatoes) are now on. The cages offer terrific support for the growing tomatoes. Just keep pulling the branches up to the next higher hole as it grows. I also have small t-posts (3 foot tall) in the ground and the cages tied to it so the wind can’t blow it over as the plants gets bigger.

sweet corn in!

Finally the last of the garden is in. Corn. I was going to plant a variety called ‘Silver Queen’ but that takes 82+ days and I’m planting so late that I don’t think I have time for it to harvest  since that would put me in mid September. So I’m planting a variety called ‘Spring Treat’ which takes only 68 days to maturity. If any of you get a late start on your veggies, just look at the package where it says how many days it matures in and get a variety that takes less time-that way you can still get lots of veggies this season.

Bri’s Giant Pumpkin Patch in

baby pumpkin plant under low tunnel with shade cloth open

They’re in! The giant pumpkin plants are finally planted in Bri’s Pumpkin Patch. I rototilled the extra composted horse manure in and finished the low tunnels and put them in place Saturday in record breaking 99 degree heat here in Santa Fe. Brutal.

949.5 N.Harp 09 baby pumpkin plant

Sunday I planted my four baby giant pumpkin plants-949.5 N.Harp 09, 817.9 Schieder 09, 1166 Mohr 09, 895 Grande 08.  I planted them at a 45 degree angle in the direction they will vine and up to the cots (baby leaves) so their stems will be protected from snapping off in wind. They are just starting to lay down so I built up the soil under them to support them. I placed them in the direction to grow out of the tunnels (remember to look at the second true leaf and that is the direction they will grow).  I was worried that even with row cover over the top of the low tunnels, it would still be too hot for the baby giant pumpkin plants so I covered them with additional row cover. I had them in the windowsill but not outside to really harden off so I was afraid they would be really tender to the intense heat. I watered with Super thrive and seaweed fertilizer to help with the shock.

In addition, I went out and got some shade cloth to put over the row cover and to shade the ends. That should help with the temperatures expected to be in the mid to high 90’s the rest of the week. It ended up with much lower temperatures on Sunday- 86 degrees because a storm moved in all day and cooled things off and dumped some nice rain that night. Perfect planting weather!  Not too hot. Nice lightning storm too.

4 low tunnels with pumpkins

I checked them last night after a 96 degree day and they are doing well what with all the extra protection. I still have to get in the drip system for the pumpkin plants but that should be easy the way I designed the patch. I also want to put a path around the patch to discourage people from walking through the patch and compacting the soil.

I also planted the last of the eggplants-Thai yellow egg and the winter squashes-Chiogga d’ Marina and Galeux de Eyesines seeds. Finally, I only have to get the corn in…almost there.

unusual radish shapes!

LAVA’S RADISHES
My friend Lava had extra radishes she grew and since I didn’t grow any and it is getting hot and the radishes bolt, she told me to go over to her garden and pull some. To my surprise I found some very large wierd shapes.  Here are a few of them.

RADISH HEAD

This one on the left had split and looked like a Tim Burton character. I added some cloves for eyes and nostrils but it was already there just waiting for my imagination to enhance it. I like the roots for hair.

Cracking in a radish indicates it is over-mature and will probably be bitter but this one was too much fun to care.

The one below on the right looks like a butt. She got booty! Amazing what a radish can create (at least in my mind). Need I say more…

RADISH BUTT!

Radishes can split if they get watered inconsistently or with a sudden rain storm.

Radishes are also a deterrent against some pests such as cucumber beetles and carrot rust flies. They are a good organic pest control if  planted around veggies that get those pests.