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RE3 SPI] RS [T etraaychu s spp.) 
Louisiana H. K. Plank and assistants: Red spiders have been very aoundant 
at New Orleans and vicinity this season, and particularly injurious 
"k° ,Cup ir reS i Pus_ senpei-yi^ens py ram id al is , C itrus spp-, and arborvitae. 
These infestations were much augmented by the hot, dry we-ather 
which prevailed in this general locality throughout the summer. 
GLOVER'S SCALE (Lepi desauhes gioverii Park.) 
Louisiana H. K. Plank and assistants (August 30): On trees unsp rayed since 
last season. at Villswood and on some unsprayed since July of this 
year, this scale has increased considerably, but is still compara- 
tively scarce. Tne freeze of last January, when the temperature 
went to about 16°F., is very largely responsible for the marked 
decrease from last year. This insect is attacking Citrus spp. 
CHAFF SCALE ( Parlatoria p ergandi i Comst.) 
Louisiana K. K. Plank and assistants (August 30): On trees unsprayed since 
the fall of 1923, and on some unsprayed since July of this year, 
this scale nets increased considerably, but is still comparatively 
scarce. The freeze of last January, when the temperature went 
to about 16°F., is very largely responsible for the marked de- 
crease from last year. This insect is attacking Cit rus spp. 
