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为了探求荔枝蝽蟓的综合防治方法,本文对荔枝蝽蟓的生物学特性(田間迁移习性和大发生因子)、药剂防治与生物防治配合的可能性,进行了初步研究。荔枝蝽蟓在广州地区年发生一代,卵期在3月上、中旬开始、盛期在3月下旬至5月中旬,以后渐少,8月底結束。职成虫越冬,越冬場所除荔枝树外,尚有龙跟树、烏欖树、黄皮树、芒果树、鴨脚木、蔭香树等。荔枝蝽蟓的成虫、若虫和卵,以多花果树上发生較多。荔枝蝽蟓的大发生,与当年花果树多少有密切关系,卵寄生蜂和鳥类也有一定抑制作用。荔枝蝽蟓的防治:收果后期噴射敌百虫(1:800倍浓度)对成、若虫都有更好防治作用;用蝽卵跳小蜂、黄腹卵蜂防治亦有一定效果。如两者结合施用,配合恰当,可減少用药次数,保持卵寄生蜂群落,从而收更全面防治效果。
In order to explore the comprehensive prevention and cure method of litchi stink bugs, preliminary studies were conducted on the biological characteristics of litchi stink bugs (field migration habit and large occurrence factor), the combination of pesticide control and biological control. Litchi stinkbug occurs in Guangzhou area in a generation, the egg period in March, mid-start, peaked in late March to mid-May, after gradually less, the end of August. Adult workers overwintering, wintering places in addition to litchi trees, there are dragons with trees, olive trees, yellow skin trees, mango trees, duck foot wood, shade trees and so on. Lychee stink bug adult, nymphs and eggs, to occur more on the flower tree. Litchi stinkbug occurrence, and the number of flower trees that year are closely related, egg parasitoid and birds also have some inhibitory effect. Litchi stinkbug prevention and control: late fruiting spraying trichlorfon (1: 800 times the concentration) into, nymphs have a better control effect; with stink bug eggs jumping bee, yellow belly bee egg prevention and treatment also have some effect. If combined with the two, with appropriate, can reduce the frequency of medication to maintain the egg parasitoid community, so as to achieve a more comprehensive control effect.