How long is the growing season for Zucchini??

They should go for a while longer than now. The heat can be a big factor and shorten the season. It could be either not enough or too much water, both can cause wilting. The roots could be dying for some reason, or some kind of bug is killing the plant. I have not had really good luck with my pole beans or cucumbers this year, I think that it has just been too hot for them to thrive, despite ample water.

Disease can also cause your squash plants to turn brown or dry up. Powdery mildew, Alternaria leaf blight and angular leaf spot all cause leaves to brown and become dry. These fungal diseases often occur during hot, humid weather and affect the foliage first. Keeping foliage dry, watering early in the day so the foliage dries in the sun and mulching under your squash plants help to prevent fungal diseases. Planting resistant varieties also helps to reduce problems with these diseases. When disease rears its ugly head, spraying with a copper spray may slow the spread of disease. Otherwise, remove infected plants and destroy them away from the garden.

Hi! When my squash plants do that, I go in and remove the dead leaves, as long as there are blooms it should continue to grow. Removing the dead leaves will help the plant concentrate on feeding the new parts of the plant! Also, I would check to make sure you don’t have any squash bugs killing your plant! There are sprays you can buy or there are home remedies with baking soda you can make! Let me know how it goes!! Happy Gardening!

Hi Dona, Zucchini will continue to grow and produce until the fall frosts kill them. It sounds like the squash bugs or borers have infested your plants and are killing them. Unfortunately, if the plants are already dying, there's not much you can do to save them. To keep the squash bugs and borers from overwintering in your soil and attacking your plants next year, you should pull up the existing plants and if possible, burn them to kill all the bugs and larva. Next year, don't plant the zucchini until around June 15th and then keep them dusted with Sevin or with Eight, {both are insecticide dusts}. I live in a Zone 4 planting area and only grow one green zucchini and one yellow summer squash {which is in all actuality a yellow zucchini} each year and we have enough zucchini from them to feed 4 families.

The worm you found inside the plants was squash borers. They will continue to attach all squash, melons, pumpkin, cucumber vines in future years as they overwinter in the soil. Be sure to dust all these plants with Sevin {yes, that's spelled right} or Eight as they will help eradicate the insects but these dusts are not harmful to humans, birds, etc. Wish you were close to me, we only have 1 green zucchini and 1 yellow zucchini {aka summer squash} & we'd give you more that you can eat.