Pesticides must be applied legally complying with all label directions and precautions on the pesticide container and any supplemental labeling and rules of state and federal pesticide regulatory agencies. Due to constantly changing labels, laws and regulations, the Extension Services can assume no liability for the suggested use of chemicals contained herein. Criticism of products or equipment not listed is neither implied nor intended. The information herein is supplied with the understanding that no discrimination is intended and that listing of commercial products, necessary to this guide, implies no endorsement by the authors or the Extension Services of Nebraska, Colorado, Wyoming or Montana. 1Labeled for chemigation 2Generic active ingredient, several formulations. Some rotational restrictions with root crops.ДЈ days. All formulations except Sevin SLR+ are extremely hazardous to bees. Maximum 1.6 lb (AI)/acre per season.Д days.

Product list for Squash Bugs: InsecticideДЎ day. Check product labeling for usage restrictions. Note: the following products are registered for winter squash or pumpkin, and may or may not be registered for other cucurbit crops. Two treatments, the first initiated at first egg laying and a second application 10 to 14 days later may provide acceptable season-long control. When using insecticides, application must be thorough so that leaf undersides are covered. Winter squashes are often heavily damaged by squash bugs. Parasitic wasps and flies may assist in natural control of this pest during the growing season. Winter mortality of overwintering adults may be high, particularly in the northern areas of our region. Plants wilt and leaves become blackish when feeding is severe. Squash bug immatures and adults suck the sap from their host plants and in high densities may cause plant decline. They have well developed visible piercing-sucking mouthparts, and the head is triangular-shaped when viewed from above. Adults are gray-black in color and about 25 millimeters (one inch) in length. A second generation will occur later in the season, and it is this more abundant generation that can cause serious injury to cucurbits, particularly winter squashes. Females lay shiny brown barrel-shaped eggs in masses, one layer thick, on the undersides of leaves. Squash bugs overwinter in plant remnants and become active in the late spring/early summer about the time of emergence of host plants.

These bugs are usually of lesser importance on other cucurbits in our region. Identification (and Life Cycle/Seasonal History)Дense infestations of squash bugs can occur on winter squashes.

1 Identification (and Life Cycle/Seasonal History).