论文部分内容阅读
矢尖蚧在全国各柑桔产区发生比较普遍,柑桔枝、叶、果实均可受害。叶被害后引起退绿变黄,果实受害后不能充分成熟和着色,严重时造成叶片卷缩,枝叶枯死,削弱树势,降低果实产量和品质。为此,我们近几年来应用40％乐斯本(Lorsban,美国陶氏公司)、25％喹(口恶)硫磷(Quinalpbus)、40％杀扑磷(Supracid,瑞士汽巴公司),40％氧化乐果、10％安绿宝(Arrivo,美国FMC公司)、20％除虫菊酯及矿物油等杀虫剂对矢尖蚧进行防治试验。现将结果整理如下。
Agrimony scale occurs in citrus growing areas throughout the country, citrus branches, leaves, fruits can be harmed. After the damage of the leaves, it causes the greening and yellowing, which can not be fully ripened and colored after being damaged. In severe cases, the leaves are curled, the branches and leaves are dead, weakening the tree vigor, and reducing the yield and quality of the fruit. For this reason, we have applied 40% of Lorsban, 25% Quinalpbus, 40% Supracid, 40% % Omethoate, 10% An Lvbao (Arrivo, the United States FMC company), 20% pyrethrins and mineral oil and other insecticides on Yaonaku for prevention and control tests. The results are now organized as follows.