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Poor pollination or a lack of calcium can result in zucchini fruit rotting before it's ready to harvest. This page has advice about how to solve common problems that result in zucchini rotting on the vine.
This is a guide about a zucchini plant not growing fruit. Your zucchini plant is growing very well and even flowering, but not setting fruit.
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Will zucchini stay as a bush or vine out?
It will stay as a bush but a mighty big bush, I allow a 6 ft circle for mine. I have planted them in tubs like trees are planted in that way I can set them where ever I want them. This leaves room for me to till around them.
It may depend on the kind you planted. Mostly they sell "bush variety" zucchini; but they do sometimes sell vining types. If you still have the seed packet, check it. If you don't have it, you probably will have a bush variety. But like tatr said, leave lots of room around it! I use raised beds in my garden, and one or two bushes will usually do OK in a four by four foot bed. (I have wide aisles.)
My Zucchini is growing too fast, it is covering my pepper. I wonder if I cut some leaves to uncover the pepper will this affect the Zucchini or not?
I have found that trimming a few leaves on a zucchini isn't a bad idea at all. Most of them actually have more leaves than needed for the photosynthesis process and by taking a few off it helps send the extra vital nutrients directly to the fruit instead of the leafy matter. I have to trim off some of the leaves anyway, makes it easier to find the fruits~
My zucchini plant female flowers are blooming great, but my male flowers haven't bloomed yet. I know the males need to bloom so the females can be pollinated. Any reasons why the males might not be blooming yet?
The leaves have a grey straining on them. Same as last year. Why?
By Sue L
The stain your seeing is mold. I have a lot on mine right now due to, to much rain not enough sunshine. I have been breaking off the really bad one and new ones are growing in there place. I'm hoping for sunshine soon here in GA.
My zucchini plants die just as they start to blossom. Later in the season they are covered with a gray beetle. What can be done without using pesticides?
Hardiness Zone: 6a
By James from Wayland, MI
Destroy crop residues after harvest and reduce overwintering sites by tilling.
Control of Curcurbit Insects
Cucumber beetles or squash beetles can be controlled effectively using carbaryl (Sevin), but wait one day after spraying before harvest. For aphids or spider mites use an insecticidal soap such as Concern Insect Killing Soap or Safer Brand Soap. Control heavy populations of aphids or spider mites with neem oil extract (such as Green Light Neem Concentrate or Bonide Bon-Neem).
For vine borers and pickleworms control after mid-June, apply carbaryl (Sevin) or neem oil extract weekly, and spray or dust in the evening to not kill pollinating insects. Wait one day after spraying carbaryl before harvest. Rotenone (such as Hi-Yield Rotenone Dust) is effective against younger squash bugs, but not against the adults. Esfenvalerate (such as Ortho Bug-B-Gon MAX Garden & Landscape Insect Killer RTU) or permethrin (such as Bonide Eight Insect Control Vegetable, Fruit & Flower Concentrate) or bifenthrin (such as Ortho Bug-B-Gon MAX Lawn & Garden Insect Killer Concentrate) will control cucumber beetles, squash bugs, squash vine borers and pickleworms, call your county agent for more info,good luck.
Hardiness Zone: 5a
Susan from Leon, Iowa
It sounds like you're dealing with Squash vine borers. Signs include vines that suddenly wilt and die, and you can usually see signs of girdling and yellowish castings from borer holes at the base of stems. Adult moths have narrow, olive-brown forewings, clear hindwings and a red abdomen with black rings. There are also long, reddish fringes on the hind legs. The larvae (borers) look like white grubs with a brown head and are about 1 inch long. They bore into the vines of squash-family plants and eat the inner tissue, filling up the stems with castings and causing the vines to collapse. The larvae or pupae overwinter in the soil, emerging as adults around the time the vines start to lengthen. The adults then lay eggs on the stems or leaf stalks near the base of the plants, and when the eggs hatch the larvae bore into the vines to feed. There is usually only one generation of borers per year (two in the south), which lasts about 4-6 weeks until the larvae return to the soil for winter.
Here are some suggestions for controlling them organically:
We have had a very wet growing season and my zucchini plant stem is soft as if it is rotting. What can I do to save my plant?
I have planted long zucchinis in my garden and as soon as they start to grow they die.
By Franca V. from M Q
By Mary N.
My zucchini got to about 3 to 4 inches, but the flower is still on the zucchini. Does that mean it is rotten? And if not when should flowers fall off fruit.
By carol c.
Why do my marrow give plenty of male and female flowers, but then the fruits die off? I have tried getting rid of the excess foilage, but then I only get the foliage growing again and nothing seems to happen.
By Jennifer from Stonehouse
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Weird zucchini from the great beyond! I have found strange vegetables in my garden before: heart shaped tomatoes and potatoes, tomatoes that look like they have a nose, carrots that look like they have 2 legs and cucumbers that look more like bowling pins. But this is the first time a Zucchini, They never have done this, seeds on the outside, flower never died and its about 18 inches long. WEIRD, WEIRD, WEIRD!
By Babbie from Lemon Grove CA
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I bought some Zucchini plants this year and put them in a sunny place in the garden. They get plenty of water. The problem is, every time they get a yellow flower on them, it lasts a few days and then drops off. I get no Zucchini. Does anyone know what I am doing wrong? I bought 3 plants and have planted them very close together.
Wanda in NE
Just be patient the Zucchini will grow. Mine do that at first as well and once they start to grow you better run or have good friends to give them to as you will not be able to keep up with them. (07/01/2005)
By Susan from Hamilton
Check the pH of your soil and add hydrated lime as for already established plants, if necessary. Also, be patient, make sure you are not over watering, and attract those bees. (07/08/2005)
I just looked up the same problem, it says that can happen when there are not enough bees pollinating. I'm going home and planting some flowers by mine, hoping to attract more bees. (07/14/2005)
There are lots of reasons: the soil might be too moist, the soil pH may be wrong. I had the same problem. I added calcium and got good results. (03/20/2006)
I have had similar problems and found that with less watering, my plants have produced many nice Zucchini. Try less water. I only water mine once a week if that. Good luck. (07/24/2006)
On lack of bees for pollination: it is easy to pollinate yourself. Just get a long artist's brush, stroke the male flower (the pollen will adhere) and stroke the inside of the female flower. The flowers are large so it is easy. (08/03/2006)
By Ed B.
I have been trying to grow my Zucchini in my garden but every time a Zucchini appears, it will get about 3 to 5 inches long and it will start to rot at the end. What is the problem, because my plants are big and full, but some leaves are turning yellow and the stems are full of water. Help.
Editor's Note: That sounds like blossom end rot:
"Blossom-end rot is caused by a lack of calcium in the developing fruit. It may be an indication that calcium is lacking in the soil or that the plant does not have the ability to take up adequate amounts of calcium from the soil. The following measures will help prevent blossom-end rot:
By Brent M.
When the zucchini shrivel they did not get pollinated. (10/23/2007)
By Nico from Canada
The first flowers are the male. They are supposed to be edible, but I've never fried them up. The second flowers are the female and amazingly enough they get fertilized by the males that have already bloomed. Be patient. They will come. There is a way to tell the difference between the male and female but it's very difficult (only they know). The females have the ovary at the base of the flower, and that will bulge out and grow into a Zucchini. (06/22/2008)