Pobozniak Maria, Palacz Anna, Rataj Agnieszka
Department of Plant Protection, Agricultural University, Al. 29 Listopada 54, PL-31-425 Cracow, Poland.
Commun Agric Appl Biol Sci. 2007;72(3):487-93.
The aim of the present research work was to investigate the population density and species composition of thrips infesting crops of onion in South Poland. The flight activity of thrips was monitored using blue sticky traps and plant samples were taken to record the number of adult and Larvae of thrips on onion. In 2004 the thrips were caught into blue sticky traps from the start of June to the end of the first decade of September. The peak flight activity was noticed in the middle of July. In 2004 the significant growth of the numerousness of adult thrips on onion grown from seeds was recorded in the middle and in the third decade of August, whereas on onion grown from sets in the first decade of August. Thrips larvae were not observed during the whole vegetation season. In 2005, the thrips were caught into blue sticky traps form the half of June to the first decade of September. The peak flight activity was noticed in the first decade of August. In 2005 the rapid growth of the numerousness of adult thrips on onion grown from seeds was recorded in the third decade of July. The highest number of adult thrips on onion grown from sets was noticed at the beginning of August. Thrips larvae were observed on onion grown from seeds in the third decade of July and at the end of the second decade of August. In both years of observations the most numerous species was Frankliniella intonsa Tryb. The second most numerous species was Thrips tabaci Lindeman. In 2004, the most numerous species was predacious Aeolothrips intermedius Bagnall.
本研究工作的目的是调查波兰南部侵染洋葱作物的蓟马的种群密度和物种组成。使用蓝色粘虫板监测蓟马的飞行活动，并采集植物样本以记录洋葱上蓟马成虫和幼虫的数量。2004年，从6月初到9月的第一个十年末，蓟马被捕获到蓝色粘虫板上。7月中旬观察到飞行活动高峰。2004年，8月中旬和第三个十年，在播种种植的洋葱上记录到成虫数量显著增长，而在8月第一个十年，在鳞茎种植的洋葱上成虫数量显著增长。在整个生长季节未观察到蓟马幼虫。2005年，从6月中旬到9月的第一个十年，蓟马被捕获到蓝色粘虫板上。8月的第一个十年观察到飞行活动高峰。2005年，7月第三个十年，在播种种植的洋葱上记录到成虫数量迅速增长。8月初，在鳞茎种植的洋葱上观察到成虫数量最多。7月第三个十年和8月第二个十年末，在播种种植的洋葱上观察到蓟马幼虫。在这两年的观察中，数量最多的物种是西花蓟马。数量第二多的物种是烟蓟马。2004年，数量最多的物种是捕食性的中间纹蓟马。
