The main period of egg hatching, which is the favourable opportunity for its control, lasts ho the flower fall- en to the first leaf Spreda out.
越冬卵孵化盛期为落花后至第一片叶展开之际，这是防治的有利时机。
The main period of egg hatching, which is the favourable opportunity for its control, lasts ho the flower fall- en to the first leaf Spreda out.
越冬卵孵化盛期为落花后至第一片叶展开之际，这是防治的有利时机。
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