Renn N
Central Science Laboratory, York, U.K.
Med Vet Entomol. 1998 Jan;12(1):46-51. doi: 10.1046/j.1365-2915.1998.00081.x.
The efficacy of the entomopathogenic nematodes Steinernema feltiae and Heterorhabditis megidis after formulation into a housefly bait was compared with a commercial bait formulation of methomyl for the control of houseflies in a U.K. pig farm. The housefly infestation was confined to the farrowing unit, which consisted of ten farrowing houses, where two adjacent houses were sequentially re-stocked with pregnant sows at weekly intervals. Shortly after re-stocking, one house was baited with one of the nematode species and the other with methomyl. Significantly fewer flies (P < 0.05) were counted in the houses baited with either S. feltiae or H. megidis than those baited with methomyl. The efficacy of S. feltiae sprayed on to the manure was also compared with methomyl bait. Counts of houseflies carried out in the farrowing cycle before this treatment were not significantly different (P > 0.05); however, significantly fewer flies (P < 0.05) occurred after S. feltiae was sprayed. The efficacy of encapsulated S. feltiae was also compared with methomyl bait and no significant difference was observed (P > 0.05).
在英国一个养猪场中，将昆虫病原线虫斯氏线虫（Steinernema feltiae）和大异小杆线虫（Heterorhabditis megidis）制成家蝇诱饵后的效果，与灭多威商业诱饵制剂对家蝇的防治效果进行了比较。家蝇滋生仅限于产仔单元，该单元由十个产仔舍组成，其中相邻的两个舍每周依次放入怀孕母猪。放猪后不久，一个舍用其中一种线虫诱饵，另一个舍用灭多威诱饵。用斯氏线虫或大异小杆线虫诱饵的舍中，计数的苍蝇数量显著少于用灭多威诱饵的舍（P < 0.05）。还将喷洒在粪便上的斯氏线虫的效果与灭多威诱饵进行了比较。在该处理前的产仔周期内对家蝇进行的计数没有显著差异（P > 0.05）；然而，喷洒斯氏线虫后苍蝇数量显著减少（P < 0.05）。还将包囊化斯氏线虫的效果与灭多威诱饵进行了比较，未观察到显著差异（P > 0.05）。
