PLANT NEMATODES THE GROWER SHOULD KNOW


female. This variation in the number of eggs is caused not only by
temperature conditions, but also by the kind of host, some plants being -
more suitable than others. Each egg may develop a larva (Fig. 12 A &


 Figure 15.-Photomicrograph of a swollen root section of the balsam plant
(Impatiens balsamina) with numerous adult females of a root-knot nematode; the
eggs of one specimen can be clearly seen. X 50