棉盲蝽(主要指蓿苜蝽)以成虫和若虫的口针刺吸棉株汁液,危害棉苗生长点、嫩叶和幼蕾,造成枝叶丛生、破叶及幼蕾脱落。棉盲蝽越冬场所相对集中,第一、二代主要集中在越冬虫源地附近,逐步向早发丰产棉田扩散,并在棉株幼嫩部位危害和产 Cotton bug (mainly referred to as alfalfa) acupuncture with adult needles and nymphs sucking cotton juice, endanger the growth point of cotton seedlings, young leaves and young buds, resulting in branches and leaves, broken leaves and young buds off. Lygus overwintering sites are relatively concentrated, the first and second generation are mainly concentrated in the vicinity of the source of overwintering insect and gradually spread to early high-yielding cotton fields, and in the tender parts of cotton plant damage and production