Louisiana 
California 
Louisiana 
California 
Louisiana 
Louisiana.^ 
California 
Louisiana 
- 123 - 
CITRUS AND SUBTP.OP.TCAL F RUITS 
RED SPIDERS (Tet ranych us sp . ) 
H. K. Plank and Ed. Forster (May 6): Red spiders have multi- 
plied considerably in New Orleans and vicinity during the past 
six weeks, particularly on Citru s spp. , Amygdalus. persica, Ver- 
bena sp. , and Cupress us Sernpsr-virens. " pyr? iii ) dal is . The weather 
during this period was unseasonably hot ar.d dry. Damage to crop 
was about 5 per cent on the average.' 
COTTON APHID (Aphis gcssypii Glover) 
Clifford T. Dodds (May 7): . During March and April the damage to 
orange trees in Ventura, Orange, and "Los A.ngeles Counties was some- 
what more than usual. As a rule, the damage is confined to trees 
less than 5 years old; this year, however , ' many of the oldest trees 
received aphis damage. 
PERSIMMON PSTLLID ( Trio 3a fliespyri Ashm. ) 
H. K. Plank (May 8): A few adults were found on the young leaves 
today. Last year they were found .very abundant on May 10-15 on 
both Japanese and native persimmon. 
.SERICA BEETLE ( Serica fimbria ta Lee. ) 
R. R. McLean (May 1): Considerable injury reported to deciduous 
fruit trees and to avocados by Serica beetles, probably S. f imbriata , 
in San Diego County. 
GLOVER'S SCALE ( Lepidosaphes .adoverij Pack. ) 
H. K. Plank (May 6): • This. scale is increasing somewhat on un- 
sprayed trees at New Orleans and vicinity, but has not yet reached 
normal abundance. 
PURPLE SCALE ( Lepido saphes bec kii Newm. ) 
H. K. Plank (May 6): At New Orleans and vicinity this scale is 
increasing considerably on unsprayed: trees but does not yet seem 
to have reached normal abundance. 
CITROPKILUS MEALYBUG ( Pseudococcu s gahani Green) 
Clifford T. Dodds (May 7): Psspdococcus gab ani continues to spread 
to new territory where considerable damage is caused in Orange and 
Los Angeles Counties. Old infestations are being controlled oy 
the natural enemy C ryptolaemus montrouzi^i 1 ::.ifal:3 . 
CITRUS MEALYBUG ( Pseudococcus citri Risso) 
H. K. Plank (May 15): This pest is increasing considerably in 
abundance on un sprayed trees throughout the city of New Orleans, 
but trees which were sprayed last February with oil emulsions, 
containing 2 per cent of lubricating oil, still seem to be free 
from infestation. • . 
