PLATE II. 



Fio. 2. Photomicrograph of squash vine borer eggs, x 24 foiiginal). 



Fig. 3. Newly hatched squash vine borer larva. Photomicrograph, x 13 foriginal). 



Fig. 4. a. Healthy squash stem. b. Badly infested squash stem. Note burrows 



at"X." (Photo by R. L. Coffin.) 

 Fig. 5. Center of badly infested hill of squash. Note shredded condition of the bases 



of the stems. (Photo by R. L. Coffin.) 



