In a survey of potato and rotational crops on Prince Edward Island, Canada, the cyst stage of the clover cyst nematode, Heterodera trifolii, was found in 43 of 63 sites sampled; however, only 12% of the cysts contained eggs. The root lesion nematode, Pratylenchus penetrans, was the dominant plant parasitic nematode and was found in 56 sites. Extraction of cysts from soil was similar using eithe...

a survey was conducted to identify parasitoids of vegetable leafminer, liriomyza trifolii (burgess), in shiraz region from april 2004 to september 2005. a total of eight eulophid species, viz. baryscapus impeditus nees*, closterocerus formosus westwood, diaulinopsis arenaria erdos*, diglyphus crassinervis erdos, diglyphus isaea walker, diglyphus pulchripes crawford*, hemiptarsenus zilahisebessi...