伊拉克椰枣灰飞虱综合治理项目的开发与应用

The Development and Application of an Integrated Program for the Management of the Dubas(Ommatissus lybicus De Berge)Pest in Iraq

该研究采用Grid-GPS监测系统,飞行喷雾校准系统,2种环境友好型农药对椰枣灰飞虱(Ommatissus Lybicus De Berge)进行防治,并进行农药残留量的测定。结果显示,在实施该害虫管理系统前,经Grid-GPS监测系统监测的2014年春季代害虫的发生情况为轻度(0~5)卵/小叶,占总发生面积的41.75%,重度(6~10)卵/小叶占总发生面积的28.86%,重度(11~25)卵/小叶,占总发生面积的23.23%,极重度26+卵/小叶,占总发生面积的6.16%。2种环境友好型农药都是有效的,且在进行田间管理的果园内药效更佳。经Grid-GPS监测系统监测的2015年秋季代的害虫为害情况与2014年春季代相比,轻度、中度、重度和极重度所占总为害面积的比率分别变为68.48%、19.52%、10.44%、1.57%。15%醚菊酯超低容量剂和2.4%苦参碱超低容量剂残留量分别在施药3d和4d后降至0。

An integrated program has been developed and applied for the management of the dubas bug （Ommatissus lybicus De Berge）.The program including a pest monitoring system Grid-GPS, an aerial spraying calibration, and echo-friendly pesticide ssuch as herbal-based Matrixine （Oxymatrine 2.4% ULV） , and Trebon （Etofenprox15% ULV）.The residue content on the plant was also estimated as part of the program evaluation process.The results of the Grid-GPS map of the 2014 season indicated the existence of four different dubas infestation levels, ranging between light （0-5） egg/leaflet covering with 41.75% areal coverage, medium （6-10） egg/leaflet with 28.86% areal coverage, severe （11-25）egg/leaflet with 23.23% areal coverage, and very severe ＂bores＂ （more than 26 egg/leaf- let） with 6.16% areal coverage of the total surface area.Both pesticides were effective, albeit to different levels, as the results showed qualitative superiority in the percentage efficiency in tended （farmed） orchards, compared to neglected （untended） orchards.In addition, the Grid-GPS scan results for the autumn generation of 2015 for orchards with light, medium, severe, and very severe infestations, indicated a change in the infestation levels in these categories from 41.75% to 68.48%, from 28.86% to 19.52%, from 23.23% to 10.44%, and from 6.16% to 1.57% respectively.The pesticide analysis results for the 2014 season showed that the residue for Oxymatrine 2.4% ULV diminished to 0.0 ppm after 3 days of spraying, and the residue for Etofenprox 15% ULV diminished to 0.0 ppm after 4 days of spraying.