The influence of the sowing time on the intensity of attack by the panicle generation of frit fly
Tóm tắt
Early sowing of winter and spring barley and oats are in general more effective in relation to the attack of frit fly panicle generation than the later sowing, with the exception of late varieties. Meanwhile, we must have in mind that favourable weather conditions in autumn may enable the insects to prolong their activity and to attack the early sowing crops. As well, drought in autumn and low temperature in the spring which occur very often in this area, delay the germination and sprouting so that the heading time of early sown crops coincides with the time of late sown ones.
Tài liệu tham khảo
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