Depends. Do you see any insects? Squash bugs are longish grey/dark grey...the mature ones that is, the young are white bodied. Best bet is to squash them. In the morning using a light spray of water from your sprayer nozzle spray the stems and the ground next to them....get in there close and watch as you spray and you will see the squash bugs run for cover...pinch them between thumb and forefinger...you get used to it. Orrr, you can place a board plank on the ground at the base of the plant and check it each morning early...flip it up and again squash the little buggers. Also you will need to scrape the golden brownish eggs they deposit on the tops of leaves and stems of the squash plant as well as any plants close by...they used my beans as nurserys as well. When it got really bad, herds arriving from the bean patch I broke down and dusted the lower stems...away from blossoms (bees) and the ground around the plant with the big 7 dust. I dusted in the late afternoon and evening and hurried out the next moring to rinse it off. I only had to do it once...this is the only time I use the stuff. Another critter is the sqaush borer...check at the bottom of the stem as it leaves the ground and if you find a wound (open hole) that's your problem...they say that you can take a flash light and shine it on the stem and see the worms shadow in the stem and pearce the worm with a long sewing needle or pin. Never tried it myself, usually the borer has sickened the plant so much that I just pull it up. Hope this helps. P.S. diatanaious earth might kill the young larva which are soft bodied.