IMPORTANT PECAN IXSKCTS AND THEIR CONTROL. 25 



paste form to each 50 gallons of water, to which should be added 3 

 pounds of slaked stone lime. This species, however, rarely is abun- 

 dant enough in orchards to call for special treatment. In, pecan 

 orchards in which spraying is directed against the more injurious 

 posts the pecan cigar case-bearer rarely will be a source of trouble, 

 as the larva 1 of this and the other species are killed by the same 

 treatments. 



THE PECAN BUD-MOTH.i 



The pecan bud-moth is a pest of greater or less importance in the 

 pecan orchard and nursery. At tunes it becomes so abundant that 

 the damage caused, by the larva? feeding upon the terminal buds 

 of pecan nursery stock entails considerable loss to nurserymen. This 

 insect evidently occurs throughout the pecan-growing region, as 

 reports of damage have been received from most of the Southern 

 States. Besides feeding upon the pecan, it has been recorded doubt- 

 fully from various hickories, and doubtful records exist of its occurence 

 011 the black walnut. 



DESCRIPTION. 



The general color of the moths is gray, mottled with blackish-brown 

 patches and streaks, and the expanse of wings is just a little more 



than half an inch. The blackish-brown 



patches on the forewings are arranged in 

 a zigzag fashion from the base of each 

 wing across its middle to the tip. The 

 hindwings are without markings and 

 are dusky gray, with the outer margin 

 somewhat darker. The moths are very 

 active and are often found frequenting 

 the tree trunks, on which they rest 

 head downward. When disturbed the 

 moth will fly away in a jerky manner for 

 a short distance and then suddenly wheel 

 about to return to the tree trunk that 

 it just left. 



The eggs (fig. 30) are small, oval, whitish, 

 and iridescent in some lights. When the 

 trees are in foliage the eggs are laid upon 

 the upper surface of the leaves, but be- 

 fore the buds push forth in the spring eggs 

 are often found deposited on the twigs. 



When full grown the larva (fig. 29, at 

 right) is about five-eighths of an inch in length. The body, which 

 is sparsely covered with fine hairs, is yellowish green, and through 



FIG. 29. The pecan bud-moth (Proteop- 

 teryx bolliana): Pupa at left, larva at 

 right. Enlarged. 



Proteopteryx bolliana Sling. 



