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草莓白粉病始见于10月下旬至11月上旬
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草莓白粉病始见于10月下旬至11月上旬
摘要:草莓白粉病始见期在10月下旬至11月上旬,危害严重期在12月至翌年2月。 草莓白粉病是草莓生产中的主要病害之一,主要危害草莓叶片和果实。严重时会侵染到叶柄、花萼等其他部位。白粉病病叶率在45%以上,病果率50%以上。白粉病是一种喜低温、高湿的病菌,在5℃以下和35℃以上均不发病。当棚内温度在15-25℃时,相对湿度在40%-80%时,发病蔓延速度都比较快。 发病时期:草莓白粉病始见期在10月下旬至11月上旬,危害严重期在12月至翌年2月。白粉病发生有3个关键时期:育苗期、开花现蕾期、采收前...
Fungicides China News (Chinese version) 202111
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