Led trap for monitoring of the еuropean corn borer, Ostrinia nubilalis: the results of trials in Krasnodar territory
Keywords:
еuropean corn borer, Ostrinia nubilalis, monitoring, light-emitting diodes, sexual pheromones, trapsAbstract
Here we present the first results of the field trials of a LED glue trap used for monitoring of the European corn borer (ECB), Ostrinia nubilalis carried out on maize crop in three geographical points located in Gulkevichi (vil. Botanika), Temryuk (vil. Kurchanskaya) and Slaviansk (huthor Slobodka) Regions in the Krasnodar Territory. Pheromone traps manufactured by JSC “Shchelkovo Agrokhim” were used as standard. The number of the moths caught per one LED trap exceeded 3.7 to 12.1 times the number caught by set of three pheromone traps supplied with Z (97 % of Z11–:3 % of E11–14:OAc), E (1 % of Z11–:99 % of E11–14:OAc) and ZE (35 % of Z11–: 65 % of E11–14:OAc) pheromones of O. nubilalis races. Unlike pheromone traps catching only males, LED traps attracted also females whose share varied from 7 % (vil. Kurchanskaya) to 49 % (vil. Botanika) of caught moth number. Trials in the vil. Botanika showed that though LED and pheromone traps registered the beginning of the ECB flight in the same date, the peak of moth catching by LED traps was strongly displaced towards the beginning of flying period, and this peak was observed over a week preceding the beginning of oviposition by females. The peak of number of males caught by pheromone traps was recorded a week later after achieving the maximum of egg-laying activity of females.