SAWFLIES
Sawfly larvae, Periclista sp. and others, feed on the foliage of pecans during April and early May. The larvae, which are light green, chew holes in the leaves. Usually the midrib and veins are left intact, giving the leaflets a lacy appearance, [Figure 18].
The adults closely resemble wasps, except that they are not “wasp-waisted.”
Fig. 17. Developing galls of the pecan phylloxera. Note the open gall on the lower leaf.
Control.—The larvae may be controlled with an application of 2 pounds of 50 percent DDT wettable powder or 1 pound of 25 percent parathion wettable powder per 100 gallons of water.
Figure 18. Sawfly injury to pecan foliage.