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6 answers

There's still time for cucumbers to produce.
They require a long, warm growing season of at least 50 to 65 days. Sometimes the heat keeps the bees from pollinating, & even when they do, the cucumbers can abort. Also, temperature or drought stress on cucumbers may cause the plants to form only male flowers; hence no fruit will be produced. When it gets cooler, that won't be a problem.
http://gardenline.usask.ca/misc/the_sex.html

You can hand-pollinate the female flowers on your cucumber plants. Simply remove a male flower and touch its anther to the stigmas of the female flowers present. One male flower produces enough pollen to fertilize a number of female flowers.

Make sure your plants are watered & have good drainage. "Under normal conditions, the crop needs approximately 1 inch of water per week. When the crop is fruiting especially during periods of hot, dry weather, under windy conditions, or both... up to 2 inches of water per week may be required by the crop."
http://www.ces.ncsu.edu/depts/hort/hil/ag552bc.html
"While it's better to water five to seven days apart, more water may be required in warm weather, especially in sandy soils. Temporary wilting in the afternoon is common, but morning wilting is a call for immediate watering."
http://www.ext.colostate.edu/ptlk/1805.html

Keep them elevated off the ground. Make sure you don't water before 10 a.m. so your plants will have a chance to get pollinated, & don't water overhead because that could wash off the pollen.

If you feel you have given your plants all the conditions for good growing -- plenty of sunlight, water, and nutrients, and a rich soil with neutral pH -- then the wilting is likely caused by a disease called bacterial wilt. The disease is spread by cucumber beetles as they feed. To test for bacteria, cut a wilted stem near the base of the plant and squeeze out the sap -- look for a milky white substance. Touch the tip of a knife to the ooze, and if, as you withdraw the knife, it pulls out in a fine thread, the plants have a bacterial infection. There is no chemical control for this type of wilt; the best bet is to control the beetles, or better yet, grow resistant varieties.
Also, borers can invade the stems, causing plants to wilt. If borers are the culprit, you'll find small holes and sawdust-like.
If your cucumber beetle problem is severe, you might consider growing your cucumbers under "all-season" lightweight fabric row covers to exclude the pest insects. If you choose to use row covers, also choose cucumber varieties that do not require pollination to set fruit.
http://www.saferbrand.com/faq/cucumbers.asp
Repeated applications of insecticides may be needed to control reinfestations of the cucumber beetle. There are other diseases that can affect the plants. Here's illustrations & disease management solutions:
http://www.ag.ndsu.edu/pubs/plantsci/hortcrop/pp656w.htm
Good luck! Hope this helps.

2007-08-23 14:39:35 · answer #1 · answered by ANGEL 7 · 0 0

1. Cucumbers are very prone to various wilts, like bacterial wilt. These diseases are carried and spread by cucumber beetles, those little green beetles you are probably seeing congregating on the yellow blossoms. Very hard to get rid of these bugs without chemicals.

2. Cucumbers are sensitive to crowding and competition for water and nutrients. Each vine should have plenty of unused soil area around it, covered with compost or mulch to hold in moisture and keep out weeds.

3. Cucumbers are hot weather plants, sun lovers. They will not do well if they are in too much shade.

4. Water water water! Like all cucurbits, the fruit is mostly water. They need a lot of it to grow.

5. Keep the water off the foliage. You could have mildew develop on wet leaves, which also kills the plant.

Not sure where you live, but there is still time to get a good harvest if your vines aren't dying. Our first frost here averages Oct. 15.

2007-08-23 22:04:18 · answer #2 · answered by ViSaja 3 · 1 0

Maybe u should try buying the fruit and vegetable plant food and they have soil that is made just for growing vegtables && fruits it have very good nutrients in it that help the plant to produce ur fruits and vegtables. Good luck

2007-08-23 17:00:06 · answer #3 · answered by SexieIndianPrincess 3 · 0 0

You could have a polination problem or a watering problem.

I have raised beds that drain really well so I try to water often enough to keep the ground from drying out. I also use a well composted mulch to retain moisture and to prevent weeds. They don't compete well with weeds.

2007-08-23 21:40:47 · answer #4 · answered by greenthumb 2 · 0 0

maybe the soil doesn't have enough nutrients. that would happen if you use the same soil over and over without putting in compost or manure.

2007-08-23 17:01:16 · answer #5 · answered by Anonymous · 0 0

miracle grow

2007-08-23 17:01:01 · answer #6 · answered by tilda 4 · 0 0

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