-121- 
PHYLLOXEEA ( Phylloxera spp.) 
Mississippi. C. Lyle and assistants (May 23): Numerous complaints of 
damage to pecans have "been received during the month. Specimens of 
P. devastatrix Perg. were received fron correspondents at Rolling Fork, 
Yazoo City, Charleston, Leland, and Satartia. P. notabilis Perg. 
was received fron Pattison, and a complaint unaccompanied by specimens 
came from Vicksburg. A report was received of damage to a pecan tree 
at Leland. 
Louisiana. W. C. Pierce (May 5): The first open galls of P. devastatrix 
were observed near Shreveport on Schley pecan trees. The gall opening 
period on Stuart and Success varieties is a little later than on the 
Nelson and Schley varieties. Severe damage has been caused on pecan 
trees at locations scattered along the Hed and Mississippi Rivers. 
(May 7-15) ! Light infestations of Phylloxera sp. (undetermined) have 
"been observed on pecan trees in southwestern Louisiana and on trees 
growing along the Pod and Mississippi Rivers. The most severe infes- 
tation was observed on Nelson variety, which was also attacked by 
P. devastatrix . 
PECAN APHIDS (Aphiidae) 
Georgia. T. L. Bissell (May 21): Melanocallis car yaefoliae Davis, the black 
pecan aphid, is present in moderate numbers, a small number of fending 
spots being present at Experiment. Monellia costalis Pitch is very 
abundant at Experiment. M. nigropunctata Granovsky is present in 
moderate numbers on pecan at Experiment. 
A SAWFLY ( Periclista sp.) 
Louisiana. M. C. Pierce (May l~l r j): Small holes in pecan leaflets caused 
by the feeding of sawfly larvae have been observed in every pecan 
orchard visited in this State. Practically no damage has been caused. 
OBSCURE SCALE ( Chrysomphalus obscurus Comst.) 
Mississippi. C. Lyle and assistants (May 2}): An infestation of obscure 
scale on pecan trees at Shaw was reported by Inspector N. L. Douglass, 
who also stated that a few oak trees had been killed by this insect 
and others severely injured. In the Delta this scale is causing damage 
to pecan trees. 
Louisiana. W. C. Pierce (May 7): Ten-year-old pecan trees severely encrusted 
with obscure scale were observed near De Ridder. It is unusual to find 
pecan trees of this age heavily encrusted with this scale. In northern 
Louisiana damage is confined mostly to the lower parts of trees from 
20 to 30 years old or over. 
