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Rust Control Basics

机译:防锈基础

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摘要

If you suspect rust, here's a recap of how to identify, collect samples and treat, according to USDA pest management centers in cooperation with the National Plant Diagnostic Network, APHIS and ARS. Soybean rust symptoms are similar for both fungal species: Phakopsora pachyrhizi and P. meibo-miae. Check lower leaves first for small lesions that increase in size and change from gray to tan or reddish brown on the underside of leaves. Lesions are most common on leaves but may occur on petioles, stems and pods.
机译:根据USDA害虫管理中心与美国国家植物诊断网络,APHIS和ARS的合作,如果您怀疑生锈,这里是有关如何识别,收集样品和进行处理的概述。两种真菌种类的大豆锈病症状都相似:Phakopsora pachyrhizi和P. meibo-miae。首先检查下部的叶子,发现有较小的病灶,病灶的大小会增加,并在叶子的下面从灰色变为棕褐色或棕红色。病变最常见于叶片,但也可能发生在叶柄,茎和豆荚上。

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