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Sezónní dynamika a početnost nesytky jabloňové a nesytky rybízové v okolí Lysic
 Pavlíčková, Kristýna
The pheromone traps for monitoring of seasonal dynamic and abundance of apple clearwing (Synanthedon myopaeformis Borkhausen, 1789) and currant clearwing moth (Synanthedon tipuliformis Clerk, 1759) has been used near the town Lysice from May to August of the year 2017. During the experiment, their occurrence was compared in intensively (Lysice) and extensively (Lažany) cultivated areas with currants and orchards of apple trees, where older and younger plants are cultivated. In Lažany the flight activity of the males was studied also during the day. In the winter of 2017 and 2018 the occurrence of currant clearwing moth caterpillars was evaluated in the shoots of the currant. At both localities 223 individuals of apple clearwings and 281 individuals of currant clearwings moth were caught. The greater abundance both species was found in intensively cultivated areas on older and damaged host plants. Males of apple clearwing flew to the pheromone traps from 26th May to 9th August, they were caught in the highest abundance around 20th July. Males of currant clearwing moth flew to the pheromone traps from 31st May to 28th July, with a maximum abundance around of 10th July, The adults of both species were intercepted from 9:00 a.m. to 7:00 p.m. The males of apple clearwing moth were caught in the highest abundance at 11:00 a.m. and at 1:00 p.m. The males of currant clearwing moth were caught in the high abundance at 12:00 a.m. During the winter control only one living caterpillar of currant clearwing moth was found. On the plants no damage caused by the examined species clearwings was found, and therefore no pest control is required.
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