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Posts Tagged ‘stop squash vine borer’

It’s becoming a summer ritual, but nothing fun like going out for ice cream or sitting outside enjoying the sunshine. Nevertheless, it begins every year around this time. We are preparing for battle against the squash vine borer.

Found several eggs on this plant -- very hard to spot

Found several eggs on this plant — very hard to spot (yes they’re in the picture)

I’ve written extensively about this problem before and always hope for the best. This summer we found vine borer eggs on our yellow squash and zucchini plants. They are hard to spot — very tiny light brown eggs laid on the plants not in clusters but individually.

My new nightly ritual for the next few weeks will be inspecting every inch of the plants, picking off and crushing any eggs I find.

Also, we’re taking a proactive approach and injecting each stem with Bt, a natural bacteria that can kill the borer if it hatches and tunnels into the vines. If the past few years are any indication, we’ll lose at least some of the zucchini and squash. If it happens again, we’re┬ádone with zucchini for at least a year or two so it can move on to someone else’s garden.

 

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We came home from a camping trip two weekends ago and were excited to see how our garden was doing. Everything looked great until we spotted it – the adult version of the squash vine borer. There it was, just sitting on the zucchini leaf minding its own business.

The adult SVB. From whatsthatbug.com

The adult SVB. Photo from http://www.whatsthatbug.com

These have been a terror in our garden for the past three years, destroying our squash plants. Ever since the first year, when our plants were perfectly healthy then dead within days, we’ve been watching for this. I thought we were in the clear this year, but I was wrong.

In a weird way, I’m glad we saw it. I wasn’t as diligent about checking for any signs of the squash vine borer because everything was healthy and doing well — no yellow leaves, no wilting.

I think our beneficial nematodes really helped because they killed most of the cocoons that might have overwintered. But, seeing this adult reminded us that we’re not in the clear, and we still need a plan of attack.

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