摘要
研究采用系统调查和药剂筛选,对月季桑白盾蚧进行了防治研究。结果表明,月季桑白盾蚧在三门峡地区1年发生2代,以受精的雌成虫在近地面的枝干上越冬;若虫期防治可选用40%速扑杀乳油600倍液、1.2%苦·烟乳油2 500倍液;介壳形成期可选用1.2%苦·烟乳油2 500倍液、55%氯氰·毒死蜱乳油1 500倍液。因此,防治月季介壳虫最佳期为1龄若虫期,药剂可选用速扑杀乳油和苦·烟乳油。
This study aims to clarify the life history and control techniques of Pseudaulacaspis pentagona on roses in Sanmenxia.Systematic investigation and insecticide screening were conducted to examine the scale insect.The results showed that Pseudaulacaspis pentagona produced two generations per year on roses in the Sanmenxia area.Fertilized female adults overwintered on branches near the ground.The complete life cycle of the scale insect was recorded.In the first instar nymph stage,effective control was achieved using 40%Supracide(methidathion)EC diluted 600 times and 1.2%Matrine·Nicotin EC diluted 2500 times.During the scale-covering stage,1.2%Matrine·Nicotin EC(2500×dilution)and 55%cypermethrin·chlorpyrifos EC(1500×dilution)were effective.In conclusion,the optimal time for controlling rose scale insects is at the first instar nymph stage.Recommended insecticides include Supracide(methidathion)EC and Matrine·Nicotin EC.
作者
谢文燕
XIE Wenyan(Sanmenxia Yellow River Swan Lake Wetland Protection Center,Sanmenxia,Henan 472141,China)
出处
《陕西农业科学》
2025年第5期62-64,共3页
Shaanxi Journal of Agricultural Sciences
关键词
三门峡
月季
季桑白盾蚧
发生危害
药剂防治
Sanmenxia
Rose
Pseudaulacaspis pentagona
Infestation pattern
Chemical control.
