玫瑰三节叶蜂的研究初报

玫瑰三节叶蜂是月季的重要害虫之一,在福建南平,室内饲养一年发生8代,世代重叠,以蛹于土中茧内越冬。卵多个呈两排,整齐地产于嫩稍的枝条内,达髓部深处。幼虫取食嫩叶,可吃净嫩梢,甚至整个枝条,影响月季的正常生长,降低了月季的观赏价值。幼虫老熟时下地入土结茧。两性或孤雌生殖。幼虫6龄,少数为4龄或5龄。 在室内对3—6龄幼虫喷洒90％的敌百虫晶体10,000倍液或50,000倍液;80％敌敌畏乳油30,000倍液或50,000倍液;40％乐果乳油10,000倍液;50％的辛硫磷乳油10,000倍液或20,000倍液均有良好防治效果。

A PRELIMINARY REPORT OF Agre Pagana Panz

The Agre pagana Panz is one of the important pests of the china rose. In the field generations are overlapping, in the insectary, it has eight generations each year in Nanpin, Fujian. The Agre pagana Panz, as pupae within cocoons, is overwintering on the soil.All eggs are arranged in two rows,which regularly runs deeply into the stems of the twigs. The larvae eat the tender leave and even eat up the tender twigs, thus decreasing the rose valuable view,and eventually threatening the trees growth. The mature larvae descend to the ground and spin their cocoons in the soil. Reproduction is bisexual or parthenogenetical. There are almost six larvae instars,but seldom four or five. Laboratory studies have shown that it is very effective to spray with Dipterex,Dichlorvos,Dimethoate,Phoxim in the control of 3rd-3th instar larvae.