June, ’23 snapp^plum curculio 277 
of distribution, paying particular attention to the possible number of 
generations. 
In planning the curculio suppression campaign, which has been so 
successful in Georgia for the two seasons following the heaviest curculio 
infestation that has perhaps ever occurred in this country, an effort was 
made to especially concentrate control measures on the first generation, 
because by so doing the size of the second generation, which is responsible 
for most of the “wormy” fruit of the desirable and profitable late com¬ 
mercial varieties in Georgia,* would be correspondingly reduced. A 
great deal of stress was placed on the importance of picking up and 
destroying the small peaches that drop to the ground a few weeks after 
the pollination season. I am strongly of the opinion that this control 
measure did as much, if not more, to correct the abnormal curculio 
conditions in Georgia than anything that was done. This supplementary 
control measure was met with some opposition when it was first ad¬ 
vocated two years ago, but the results accomplished from its utilization 
and the economy of the operation soon attracted the attention of the 
growers all over the peach belt and during the past season, when one of 
Central Georgia’s best peach crops was produced, this control measure 
was enforced by at least ninety percent of the commercial growers. 
Peach drop experiments conducted in Georgia show that an average 
of over fifty percent of the peaches that drop before May 5 are infested 
with curculio larvae. Repeated observations made during the past 
two seasons show that a majority of the peaches stung by the curculio 
shortly after the calyx is pushed off, fall to the ground. This is a 
result of the fruit being weakened by the work of the curculio, causing it 
to fall with other weakened fruit in Nature’s system of thinning during 
the April drop. Consequently, the frequent destruction of the early 
drops prevents the development of countless numbers of the adults of 
the first generation, and this has a direct bearing on the reduction of the 
destructive second brood of larvae. 
In order that some idea may be had as to the .curculio infestation in 
peach drops in the South, and what could be accomplished by the 
picking up and destruction of this fruit, I will cite a part of the results of 
the peach drop experimental work conducted in Georgia during the 1921 
and 1922 seasons. About four weeks after the falling of the petals in 
1921 two and one-half bushels of drops were collected in an orchard near 
Fort Valley, and placed in shallow boxes fitted with wire mesh bottoms, 
under which were cloth trays for receiving the larvae. Each morning 
the larvae were counted and removed from the trays. At the end of 
