Simões N, Laumond C, Bonifassi E
J Nematol. 1993 Sep;25(3):480-5.
Steinernema carpocapsae (Breton strain), S. glaseri, and Heterorhabditis bacteriophora were evaluated for their potential to control immature stages of the Japanese beetle, Popillia japonica, on Terceira Island (the Azores). In bioassays carried out at temperatures higher than 15 C, S. glaseri and H. bacteriophora caused 100% mortality of larvae, whereas S. carpocapsae caused 56% larval mortality. At temperatures slightly below 15 C, only S. glaseri remained effective. In field plots, in September, S. glaseri and S. carpocapsae reduced larval populations by 91% and 44%, respectively, when applied at the rate of 10 nematodes/m(2). In April, S. glaseri caused 31% reduction in numbers of larvae, but S. carpocapsae was ineffective. In colder months (November-February) neither steinernematids nor H. bacteriophora reduced larval populations. Increasing the application rate from 10 to 5 x 10 infective stage S. glaseri per m(2) increased efficacy from 63% to 79% mortality.
对小卷蛾斯氏线虫（布列塔尼品系）、格氏斯氏线虫和嗜菌异小杆线虫进行了评估，以确定它们在亚速尔群岛的特塞拉岛控制日本丽金龟未成熟阶段的潜力。在高于15摄氏度的温度下进行的生物测定中，格氏斯氏线虫和嗜菌异小杆线虫导致幼虫100%死亡，而小卷蛾斯氏线虫导致56%的幼虫死亡。在略低于15摄氏度的温度下，只有格氏斯氏线虫仍然有效。在田间地块中，9月份，以每平方米10条线虫的施用量施用时，格氏斯氏线虫和小卷蛾斯氏线虫分别使幼虫数量减少了91%和44%。4月份，格氏斯氏线虫使幼虫数量减少了31%，但小卷蛾斯氏线虫无效。在较冷的月份（11月至2月），斯氏线虫和嗜菌异小杆线虫均未减少幼虫数量。将格氏斯氏线虫感染期的施用量从每平方米10条增加到5×10条，死亡率从63%提高到79%，从而提高了防治效果。
