论文部分内容阅读
以山东文登专区而言;从一九四七年起到现在,土蝗(主要是土蚂蚱和短翅蝗)的发生为害,逐年严重,通过数年来大力防治,发动群众,组织捕打,和依靠上级拨助六六六粉,重点施用药杀,基本得到扑灭虫灾保苗生产。但出于发生的扩大蔓延,土蝗逐年繁殖,在发动人工捕打方面,为生产劳力所限,扑灭不够澈底,施用药饵,面大药少不能普遍;在药效上虽对于土蚂蚱,效力强大,适于应用,惟对于短翅蝗,因其善于飞跃,捕打困难,撒布药饵,进食毒杀机会不多,群众反映难治。今年由于春旱的气候因子,适于土蝗的猖镢发生,须过三月底至四月上旬在专区的全面检查,很多地方密度较去年大量增加;如海阳县十二区乐畉乡每平方尺有三○～四○头,牟平四区一般有一○～十五
In Shandong Wenden area, from 1947 to the present, the occurrence of soil locusts (mainly grasshoppers and short-winged locusts) has been harmed year by year. Through years of vigorous prevention and control, mobilization of the masses, organization of capture, And rely on the higher authorities to help six hundred sixty-six powder, focusing on the application of drugs to kill, the basic quarantine pest control seedlings production. However, due to the expansion of the spread occurred, soil locust breeding year by year, in the launch of artificial capture, the production of labor is limited, not enough cheer, the use of bait, face large drug can rarely be universal; although the efficacy of soil grasshopper , Powerful, suitable for application, but for the short-winged locust, because of its good at leapfrogging, catching the fight, spreading the drug bait, eating poison kill few opportunities, the masses reflect refractory. This year, due to the climatic factor of spring drought, it is suitable for the rampant occurrence of soil locusts. It must undergo a comprehensive inspection in the prefecture from the end of March to early April, with a substantial increase in the density in many places over last year. For example, Squared feet have three ~ four heads, Muping four districts generally have a ○ ~ fifteen