Because of that, the number of parasitoid generations was found to be equal to the number of midge generations.
The numbers of male and female wheat midges from each trap were recorded.
A 5% interspersed refuge produces wheat midge larvae which damage seeds.
In addition, amino acid residues did not differ between the ivy fruit gall midge and the soybean pod gall midge.
The matings of midges in the separate blocks would be strongly assortative for virulence against crop resistance genes.
Chapter 5 is perhaps the focus of the book - the author's own research on pollination, largely by midges.
The wheat midge and its parasitoid oviposited throughout the plots, and parasitism was density independent.
Occasionally, however, they will take long-continued flights, when the course is more or less direct and distinctly midge-like.
