true stories in the news phần 8 pptx
Fruit growing in the tropics - Part 8 pptx
... extent by cutting out and burning affected branches before the end of the dry season, so that there are few sources of infection at the beginning of the rains. Mango hoppers suck the young shoots ... especially inflorescences; they can ruin even a heavy bloom. Control using insecticides is diffi- cult and depends on correct timing at the beginning of the flush. This is on...
Ngày tải lên: 02/07/2014, 00:20
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