Squash Vine Borer

chuckby(z5NY)May 23, 2014

I have been hit with this squash vine borer the last 2 years. I was wondering if I put down black plastic (3 ft wide) and roll it out to the end of the row and then cut a small hole thru the plastic and insert the squash or cucumber plant. Will this help???? I would appreciate any help or other ideas. Thank you for your time.

Thank you for reporting this comment. Undo
digdirt2(6b-7a No.Cent. AR HZ8 Sun-35)

The borers are hatched from eggs laid by moths on the plant. They fly in and land on the plants to lay eggs.. So putting black plastic isn't going to help in any way.

If you search most any of the 100's of discussions here about how to prevent SVB the one recommendation they all have in common is row covers. If the moth can't get to the plants to lay the eggs then you don't get any borers. But you do have to hand pollinate.

Dave

    Bookmark   May 23, 2014 at 8:00PM
Thank you for reporting this comment. Undo
galinas

Even common advice to cover base of the stem doesn't work - they successfully start their damage in the middle of the vines too.

    Bookmark   May 23, 2014 at 9:14PM
Thank you for reporting this comment. Undo
elisa_z5

The other recommendation is to grow resistant varieties, like butternut. But searching the other discussions will give you loads of info.

I'm linking, below, a particularly good discussion from last year.

Here is a link that might be useful: SVB routine

    Bookmark   May 24, 2014 at 3:17PM
Thank you for reporting this comment. Undo
canai

Just dusted heavily with diatomaceous earth including under leaves and stacked straw up the sides of the plants. I noticed one had entered the stem and i made a thin mix of water and diatomaceous earth in a cattle syringe and injected the entry and stems throughout . This product is completely harmless and food grade and I had pretty good success last season. Also when preparing next season look for cocoons in your soil as you till and squash that darn thing!

    Bookmark   May 24, 2014 at 4:28PM
Thank you for reporting this comment. Undo
tracydr(9b)

Trombocino seems to be resistant. I also let my squash grow across the ground and cover stems with some dirt.
SVB isn't much of a problem but I've had a few. Squash bugs are bad here.
Using a fabric cover can prevent both but you need to uncover to pollinate.

    Bookmark   May 24, 2014 at 7:59PM
Thank you for reporting this comment. Undo
Ohiofem(6a Ohio)

Thanks, ElisaZ5. That was definitely a good collection of scenes from the SVB battlefield. I agree that your best bet is covering the plant with insect barrier from the beginning. I think I've dodged the bullet so far because I haven't grown any squash except one volunteer Halloween pumpkin a few years ago that did fine. They don't seem to bother cucumbers, cantaloupe or water melons. But I plan to grow yellow crookneck this summer and I want to be prepared.

By the way, I don't see how diatomaceous earth would help since insects need to come in direct contact with it and it is inactivated by moisture. The larva probably go straight from the egg to the inside of the stem. Injecting BT or spinosad sounds like it would be more effective once the eggs have been laid.

    Bookmark   May 25, 2014 at 12:28PM
Thank you for reporting this comment. Undo
lm13(7)

Ohiofern, sadly they will go after cucumbers. I found eggs on mine very early last year. I picked off the eggs, covered them up and once the plants got bigger and I removed the cover, they left them alone. But my first year gardening they went after my mature cucumber once I pulled all my squash. I found several in the stem when I pulled it out. :/

It's not their first choice, but do keep an eye on cucumbers when young. I have mine covered for now and will keep them covered along with my squash as long as possible.

    Bookmark   May 25, 2014 at 2:33PM
Thank you for reporting this comment. Undo
daninthedirt(Cent TX; USDA z8a, HZ10, Sunset z30)

Last year I used tulle, which kept the borers away, but the plant self-fertilized and I got some strange but edible fruit. I guess if you have LOTS of plants under the same cover it might work better.

This year I'm trying to paint the stems with Sevin. Yep, with a 1" paintbrush. It's easier than it seems, because you just paint the real vine stems, and not the stems going to individual leaves. It can get a bit confusing, however, if things are tangled. That way, you keep the Sevin off the fruit and flowers, and even the leaves, unlike if you sprayed or dusted. You put the stuff exactly where the bugs are headed. I do it once every couple of weeks. No problems yet.

    Bookmark   May 26, 2014 at 3:55PM
Thank you for reporting this comment. Undo
ccabal(7)

Summer squash are super easy to grow under cover since they plants are smaller. Once your female flowers open, you can either hand pollinate and re-cover, or just let nature take its course, but by that time youd have a good harvest already. It probably is at least 3 weeks from the time the eggs are laid until you would notice any damage at all.

    Bookmark   May 26, 2014 at 9:39PM
Thank you for reporting this comment. Undo
CaraRose

Mine all made it to the end of the season last year, aside from the one I snapped in half (doh :()

I injected BT when i first saw signs of borer holes. All of them had some injury, but most had their stems still intact. This one, I must of missed a borer.

But this plant, while weakened and dealing with powdery mildew, still was producing to the end of the season. Even with that much damage on the stem. Kind of amazing.

    Bookmark   May 26, 2014 at 10:53PM
Sign Up to comment
More Discussions
Romaine Lettuce help
So I plant 3 sets of 3 romaine plants about 2 1/2 weeks...
robbversion1
Tomato cages
I have a large number (40+) tomato cages made from...
drscottr
What to direct seed in eastern pa
Hi everyone. I'm begining to plan my garden for spring,...
mfran12345
Are artichokes difficult to germinate?
I planted some 8 days ago... I got nothing. They are...
Peter
Cucumber leaves turning white
Hi, I am totally new to having any sort of garden and...
wanderess
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™