Insecticidal soap works Ok for insect control but there are several other organic products that work better. We've had good results with both GARDEN DEFENSE WITH NEEM and MULTI PURPOSE INSECT KILLER. These are organic gardening compliant, effective and easy to use. All you need is a good PUMP SPRAYER and you can treat the problem daily if needed. A good spraying every week will usually keep the garden free and clear of this pest and save your cuc's, melons and other veggies.