Rezultate preliminare privind supravegherea populatiei si combaterea viermelui merelor (Laspeyresia pomonella).
1994
Macarau V. | Marcu F.
Under the climate conditions of the SCCCPN Dabuleni, during 1987-1988, the Laspeyresia pomonella pest has had two generations that were observed by pheromonal traps atraPOM. It has been established that there exists a direct correlation between the biological reserve indicated by the pheromone traps and the attack frequency of the larvae in fruit. The best results were obtained by applying two treatments of each generation, in the moment of exceding the economic tolerance limit of the attack of 2.5 captures/trap. To control Laspeyresia pomonella in the variety Starkrimson there were tested 16 pesticides, Romanian and foreign. The best results were obtained using the insecticides: Decis 2.5 FC in 0.025 per cent concentration, Padan in 0.2 per cent concentration and Dimilin in 0.05 percent concentration. The microbiological produce Thuringin M 150 was efficient in the control of Laspeyresia pomonella, but at the same time it proved to be selective towards the insectivorous insects.
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