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已读[32] 发布: 2013/05/17 19:34:04
在荔枝蝽产卵初期开箱放蜂,以后每隔10天放1次,共放3次,通常每次每株放500头雌蜂,当荔枝蝽密度大时,选用敌百虫液喷射,压低虫口密度后,再行放蜂,让昆虫自己进行...
已读[31] 发布: 2013/05/17 19:34:00
●化学因素:农药如敌敌畏、敌百虫、有机氯,有机汞,本氧酸类除草剂等以及铅、镉、汞、锰、铝等重金属和氯乙烯等高分子化合物。 ●物理因素:幅射噪声和振动等。...
已读[31] 发布: 2013/05/17 19:33:46
防治1.喷涂法⑴用0.2%敌百虫于夜间喷洒鹅体表羽毛,夜间虱出来活动沾上药物后中毒死亡。同时对鹅舍墙壁、地面及一切用具用药物喷洒,使虱无藏身之地。 ⑵采用3%...
已读[31] 发布: 2013/05/17 19:33:40
常用驱虫药有丙硫咪唑、敌百虫、螨净等。 四、减少运动。要尽量减少育肥肉牛的活动,以减少营养物质的消耗,提高肥育效果。具体方法是:每次喂完后,每头牛单木桩拴系或...
已读[60] 发布: 2013/05/17 19:33:30
(2)对于淡水鱼类车轮虫病,可用硫酸铜、硫酸亚铁合剂治疗;对于淡水鱼类指环虫病,可用精制敌百虫粉、甲苯咪唑治疗。(3)对于虹鳟鱼传染性造血器官坏死病,应对发病池塘...
已读[90] 发布: 2013/05/17 19:33:17
“防治春尺蠖采用常规喷雾法,80%敌敌畏乳油1000~1500倍液;90%敌百虫晶体800~2000倍液……”近日,华店乡分管林业副乡长鞠鲁江正现场指导群众开展春尺蠖药物防治工作...
已读[30] 发布: 2013/05/17 19:32:44
Denver Post "While the one test site is showing a slight increase in benzene , other sites downstream remain static or show no detection," Williams spokesman Tom Droege...
已读[30] 发布: 2013/05/17 19:32:40
HarrisMartin Publishing (subscription) NEW ORLEANS –– Valero Refining-Texas L.P. (NYSE:VLO) has asked a Louisiana federal court to dismiss benzene claims asserted against the company, saying that the plaintiff cannot recover damages against the defendant since the alleged exposure did ...
已读[30] 发布: 2013/05/17 19:32:35
HarrisMartin Publishing (subscription) NEW ORLEANS –– Parties that recently engaged in a dispute regarding the availability of expert witnesses in a benzene case have reached a settlement agreement, according to a one-page order. In a May 6 order of dismissal filed by the U.S. District ...
已读[30] 发布: 2013/05/17 19:32:27
Denver Post After 18 months of cleanup around Suncor's oil refinery, contamination of the South Platte River is diminishing, but concentrations of cancer-causing benzene in the water remain six times higher than the national safety standard. Dealing with the ... and more »
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