656 



Journal of Agriculture, Victoria. [11 iSTov., 1918. 



is a photograph of a fertile egg on an apple, and is magnified to approxi- 

 mately thirty times its natural size. Extra vigilance is needed betweeoi 

 the middle of January and the middle of February, because experience 

 has taught that during that time large numbers of eggs are laid on the 

 fruit, and a spray j^romptly applied prevents a violent attack by the 

 grubs. This spray, besides saving the fruit, destroys many grubs that 

 would otherwise hibernate to the following spring. 



Plate 182.- 



-Fig. 1. Samples of Rymer and Moss's Incomparable. 

 Fig. 2. Halves of a Moss's Incomparable, showing arsenical 

 deposit in the calyx. 



A very minute quantity of poison is sufficient to destroy the young 

 grub, which, on hatching out, frequently crawls to some sheltered part, 

 and thence enters the fruit. The calyx is often selected as an ingress to 

 the apple, and when the first spray is given as recommended, entry 

 by this channel is prevented. Then, when judiciously applied, the 

 deposits from the second and subsequent sprays cover the clean surface 

 areas created by the expanding fruit, and protect it from being attacked 

 by the later broods. 



