Bean leaf beetles drop bean yields

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Bean leaf beetles drop bean yields

机译：豆叶甲虫使豆产量下降

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How can one farmer clear 60-bu. beans when another, planting on the same day, only gets yields of 50 bu.? Often, the difference comes from small things like variety selection and careful scouting. Looking back to the 2006 growing season, we lost some"easy" bushels to soybean cyst nematodes (SCN) because of wrong variety selection. Another source of yield loss in Central and Southern Iowa was from bean leaf beetles. Many farmers struggled to clear 50 bu.acre. It wasn't the dry conditions and high temperatures, it was SCN, bean leaf beetles and bean pod mottle virus in Central Iowa in 2006. Bean leaf beetles were at their highest level since 2002. Some fields near Ames had to be treated twice since the background beetle levels were so high.

机译：一个农民如何清除60亩。当同一天播种另一只豆时，单产仅为50 bu。通常，差异来自小事情，例如品种选择和仔细侦察。回顾2006年的生长季节，由于选择错误的大豆囊肿线虫（SCN），我们损失了一些“容易”的蒲式耳。爱荷华州中部和南部的另一个产量损失源是豆角甲虫。许多农民努力清除50英亩的土地。不是干旱条件和高温，2006年是爱荷华州中部的SCN，豆叶甲虫和豆荚斑驳病毒。豆叶甲虫处于2002年以来的最高水平。自此以来，艾姆斯附近的某些田地必须进行两次处理。背景甲虫水平很高。

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《The Corn And Soybean Digest》 |2007年第1期|共1页
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机译：豆叶甲虫使豆产量下降
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机译：豆叶甲虫是豆荚斑驳病毒（BPMV）的主要载体。上周，我们讨论了种子施药的杀虫剂对豆叶甲虫的影响，以及在BPMV疾病管理计划中这些杀虫剂是否可以代替早期的叶面施药。尽管豆叶甲虫与BPMV之间存在正相关关系，但化学防治对疾病的影响与昆虫媒介的影响不同。正如我们上周讨论的那样，一项包括种子施药的杀虫剂的管理计划导致了产量的提高，但种子质量下降。为什么会发生这种情况？BPMV如何受到影响？

Bean leaf beetles drop bean yields

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