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QUESTION: Zucchini Pests: Help! What Are They and How to I Kill Them?

comments (8) July 25th, 2010

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curryleaf curryleaf, member
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Help! What are these awful yellow creatures and how do I protect my plants?
What are these pests? Here are their brown eggs under the leaves of this zucchini plant. In my garden there are also yellow eggs under some of the leaves. Ill have to post a photo of those too.
Devastated by July. This zucchini plant in my neighbors plot was eaten up by pests. My zucchini plant was similarly destroyed. I pulled it out last week. :(
Pig out! These happy zucchini bugs are enjoying the feast in my community garden.
Starting over. I found this fresh new zucchini plant at my local big box store. Hopefully I can protect this one from the pests that destroyed my other plant.
Help! What are these awful yellow creatures and how do I protect my plants?Click To Enlarge

Help! What are these awful yellow creatures and how do I protect my plants?

Photo: G. Eide

I'm so depressed. Every year mid-summer, pests swarm my community garden and kill every zucchini/squash plant in sight. Can you please help me name these bugs and get strategies to fight them in the future?

Right now, the little yellow worms pictured above are eating everything on my neighbor's plants. I think I also had the typical brown squash stink bugs. Though I don't have any photos of them right now. At least three types of pests overwhelmed my zucchini plant and I had to rip it out last week.


posted in: pests, squash, zucchini

Comments (8)

ray1988 writes: vacume soapy water sevin dust
Posted: 5:25 pm on August 22nd
collegegirl writes: My garden is under attack from the furry yellow bugs too. I've never seen them before but they are creating havoc. I sprayed tonight with a vegetable garden spray and will going to the farm and feed place tomorrow after work. Can anyone make some suggestions? My waist high plants are going down fast.

Posted: 9:21 pm on July 1st
Birdnestsoup writes: Zucchini and delicata squash have these very strange silver grey bugs that are definitely sucking the juices out of the plants. I have never in my 40 years of gardening seen anything even remotely like these things. There can be up to a hundred in a cluster, ranging from small ones the size of an aphid to large ones almost an inch long. There bodies are oval and soft. They do not fly and they have black legs. Have dusted them directly with an organic pesticide and not a single one died!
Posted: 10:41 am on August 19th
new2green writes: I had the same problem. I had to destroy all the zucchini, pumpkin, and squash I had. Over 40 plants!! I am so sad...I bagged all the infested plants but I see lots of the beatles and the spider looking bugs still around the tomatoes and the compost bin. If somebody finds a solution, please let me know. The infestation was very severe.

Posted: 11:51 am on August 26th
Halerunner writes: It looks like you have 2 pests getting your plant....the picture with the eggs on the underside of the leaves belongs to the squash bugs (beetle). I have squished quite a few of the adults and found these eggs on them. The babies of the squash bugs have the same shaped body as the adults, but they have a white color to them instead of the brown. Another culprit to a quickly dying squash plant is the vine borer....I have not found a good solution. I wrapped the bases of my plants with foil, but that did not work. I did find that some plants have sent out new roots and basically grown a second plant. Pretty amazing...I will be having late zucchini and acorn squash this year, which is better than my zero yield last year.
Posted: 10:34 am on August 17th
curryleaf writes: Thanks Scott. Those look like the culprits. http://bugguide.net/node/view/61612

I got a picture of one of the other pests eating my plants. I'll have to upload it later today to see if anyone can ID it as well. Thanks, Gina
Posted: 8:42 am on July 31st
Salad_Days writes: I treat them as I do Japanese Beetles. I walk around with a cup of hot soapy water and gently knock them into it. Then I flush it down the toilet. Seems to do pretty well.
Posted: 10:04 am on July 30th
Scott_Abbott writes: I believe those are squash lady beetle larva. http://bugguide.net/node/view/61612

I'm in an ongoing battle to defend my squash and zucchini from this menace!
Posted: 4:06 pm on July 28th
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