[Ecological problems of protecting the grape against harmful organisms in the conditions of the Crimea]
2003
Hridchina, H.I.
Obtaining high yields of grape with good quality of the berries is connected with protection thereof from damage with different pest and diseases. As the most dangerous grape diseases, considered are mildew and oidium. Provided are results of investigating the cycle of development of the pests causing these diseases, sources of the primary and subsequent infections, organization of carrying out effective protective measures. In 2003 the most harmful pests were grape-berry-moth and felt tick. Their characteristic is given, a complex of measures is recommended to limit their number and reduce yield losses (breeding and chemical methods). It is proposed, while growing the grapes, to limit the areas treated with agricultural chemicals taking into consideration economic thresholds of the number of pests, spread of weeds and forecast of developing the diseases. For this purpose a preliminary survey is to be carried out and the fields are to be determined, where there is an actual threat of yield loss
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