168 Pecan-Growing 



three pounds of the dry arsenate of lead to fifty gallons 

 of water. All agree, however, that the spraying should be 

 thorough, covering the tree as completely as possible. 



The time of the first spraying will vary in different lati- 

 tudes, and with the difference in earliness and lateness of the 

 season, but will be some time between the 8th and the 22d 

 of May. A second and a third spraying should be made at 

 intervals of ten days after the first. 



Spraying for the second generation of larv« is usually not 

 necessary, but when it is needed it should be done the latter 

 part of June. 



PECAN BUD-MOTH 



{Proteopteryx holiana, Sling.) 



The pecan bud-moth is most troublesome on nursery trees. 

 It occasionally appears in large numbers and does consider- 

 able damage to trees in orchards before they reach any con- 

 siderable size. This insect is generally distributed over the 

 pecan belts and its attacks are confined very largely to the 

 pecan. 



The adult moth has a wing expanse of about five-eighths 

 of an inch, and is generally gray mottled with black and 

 brown. The blackish-brown zigzag pattern of the fore wings 

 extends from the base across the middle to the tips. The hind 

 wings are a solid dusky gray. The moths are very abundant 

 in autumn and are found on the trunks of the trees or other 

 nearby objects. "When they are disturbed they fly away in 

 a jerky, zigzag motion for only a few yards, and then return, 

 alighting on the trunk with the head down. 



The small, whitish, oval eggs are laid on the twigs of the 

 pecans, where oviposition occurs before the leaves come out, 



