<br><div><section class="_135editor" data-role="paragraph" style="font-size: medium; max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;">　　棉盲蝽是指棉田常见的绿盲蝽（Lygus lucorum M eyer－Dür）、三点盲蝽（A delp hocoris taeniophorus Reuter）、苜蓿盲蝽（Adelp hocorislineolatusGoeze）和中黑盲蝽（A delp hocoris suturalis Jakovlev）的总称，均属半翅目，盲蝽科。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; line-height: 1.75em; overflow-wrap: break-word !important; outline: none 0px !important;"><span style="max-inline-size: 100%; margin: 0px; padding: 0px; cursor: text; font-size: 15px; overflow-wrap: break-word !important; outline: none 0px !important;">　　年发生３～５代，是棉花蕾铃期的重要害虫。近年来，由于种植转基因抗虫棉而大量减少了用药次数，棉盲蝽被兼治的几率大大减少，因而在种植转基因抗虫棉田内棉盲蝽的数量和危害程度趋于加重，必须引起足够重视。棉盲蝽以成虫和若虫刺吸危害棉花顶心、嫩叶和蕾铃。棉花顶心受害后形成疯杈多头棉；棉叶受害后形成皱缩破碎叶而影响棉花的光合作用；蕾铃受害后发育不良而大量脱落，导致棉花减产。在抗虫棉田，尤其是在靠近果园和树林的棉田内，要严密注视棉盲要防治措施是：①农艺措施。清除棉田内外杂草，降低虫源基数。合理运用肥水和化学调控，防止棉花徒长，以恶化棉盲蝽的生存环境。②喷药防治。从５月上旬起，在棉田内对角线５点取样，每点２０株，每５天调查一次虫情和棉花受害情况，棉花打顶前被害株率达３％或百株虫量达２～３头，打顶后被害株率达５％或百株虫量达５头时，要及时喷药防治。据试验，要提高治虫效果，应注意保护利用天敌对其他害虫的控制作用。棉田防治初期，当棉盲蝽虫口密度小时，每亩可用１０％吡虫啉５克；虫口密度大时，每亩可用１０％吡虫啉７克对水喷雾，可取得良好的效果。当棉盲蝽大量发生时，可用速度快、防效高的２０％好年冬乳油，每亩用２００毫升，对水喷雾，可迅速控制棉盲蝽危害。防治棉盲蝽以有机磷类农药效果较好，菊酯类农药效果较差，可用４０％久效磷乳油，或５０％马拉硫磷乳油，稀释１５００～２０００倍喷雾防治。根据棉盲蝽的活动特点，要提高施药防治效果，以上午１０点前和下午４点后施药为好。</span></p><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; overflow-wrap: break-word !important; outline: none 0px !important;"></p></section><section class="_135editor" data-role="paragraph" id="autoparagraph" style="font-size: medium; max-inline-size: 100%; margin: 0px; padding: 0px; border: 0px none; z-index: 0; overflow-wrap: break-word !important; outline: none 0px !important;"><p style="max-inline-size: 100%; margin-bottom: 0px; clear: both; min-height: 1em; cursor: text; overflow-wrap: break-word !important; outline: none 0px !important;"><br style="max-inline-size: 100%; margin: 0px; padding: 0px; font-family: 微软雅黑, &quot;Microsoft YaHei&quot;, sans-serif; font-size: 17px; caret-color: rgb(255, 0, 0); overflow-wrap: break-word !important; outline: none 0px !important;"></p></section></div>