橘园蓟马的种类、发生规律及防治研究

The study on species,occurrence and controlling of thrips in the citrus orchards

本文以我国柑橘主产区当阳和赣州为试验基地,系统调查了橘园中蓟马为害的严重性及其发生规律;经鉴定发现我国柑橘主产区橘园内蓟马有11种:包括蓟马科中的茶黄蓟马Scirtothrips dorsalis Hood、褐三棕蓟马Lefroyothrips lefroyi(Bagnall)、花蓟马Frankliniella intonsa(Trybom)、八节黄蓟马Thripsflavidulus(Bagnall)、黄胸蓟马T.hawaiiensis(Morgan)、棕榈蓟马T.palmi Karny、色蓟马T.coloratus Schmutz和管蓟马科中的边腹曲管蓟马Rhaebothrips lativentris Karny、华简管蓟马Haplothrips chinensis Priesner、桔简管蓟马H.subtilissimus(Haliday)、狭翅简管蓟马H.tenuipennis Bagnall;并对蓟马进行药剂防治试验,结果表明,吡虫啉、敌百虫和阿维菌素3种药剂都能有效的减少蓟马的虫口数目,在柑橘花期之前和柑橘花期施药可以有效的降低蓟马对果实的为害率。

The damage caused by,occurrence and species of thrips in citrus orchards was investigated.Eleven species were found;Scirtothrips dorsalis Hood,Lefroyothrips lefroyi（Bagnall）,Frankliniella intonsa（Trybom）,Thrips flavidulus（Bagnall）,T.hawaiiensis（Morgan）,T.palmi Karny,T.coloratus Schmutz,Rhaebothrips lativentris Karny,Haplothrips chinensis Priesner,H.subtilissimus（Haliday） and H.tenuipennis Bagnall.A pilot study indicated that the number of thrips decreased significantly following the application of Imidacloprid 70 WP,Dipterex 30 EC and Avermectin 5 WDG.However,damage to fruit was only reduced when these pesticides were applied before,or during,the flowering of citrus trees.