四川德阳地区稻黑蝽发生规律及防治技术

Occurrence and control of Scotinophara lurida (Burmeister) in Deyang of Sichuan province

近年来 ,稻黑蝽Scotinopharalurida(Burmeister)已成为四川德阳地区水稻主要害虫之一。对其生物学特性、发生规律的研究表明 ,该虫在四川德阳地区一年发生 1代 ,以成虫越冬 ,越冬成虫翌年 4月中旬开始活动 ,4月下旬陆续进入稻田 ,6月上旬开始产卵 ,6月中、下旬进入产卵高峰期 ,6月下旬为卵孵盛期 ,8月中旬进入成虫羽化盛期 ,9月上旬陆续离开稻田 ,迁入越冬场所。若虫和成虫均刺吸水稻汁液 ,一般在田边 1～ 3m危害 ,严重的全田危害。本文还分析了稻黑蝽严重发生的原因 。

Scotinophara lurida (Burmeister) has become one of the important rice pests in Deyang of Sichuan province in resent years. Its bionomics and occurrence law were studied. The results show that the insect has one generation a year in Deyang of Sichuan province and overwinters as adult. The overwintering adults begin to activate in the middle ten days of April and gradually move to rice field in the last ten-days of this month. The adults begin to lay eggs in the first ten-day period of June and the peak in the middle and last ten-day period. The peak of hatching is in the last ten-days of June. Emergence peak is in the middle ten days of August. The adults gradually move to the overwintering place from rice field in the first ten-days of September. Both larvae and adults suck rice juice, generally harming the rice of one to three meters near field ridges, seriously involving whole field. The occurrence reason is analyzed and the control method is also proposed.