Indiana 
Indiana 
Indiana 
Delaware 
Indiana 
Michigan 
GREENHOUSE AND ORNAMENTAL 
PLANT INSECTS 
ASTERS 
Correction: (Volume 2, No. 6, page 226). The caption "Pictip.es. sp." 
is a typographical error and should read " Eisonyx picipes Fierce". 
CHRYSANTHEMUM 
CHRYSANTHEMUM GALL MIDGE ( Diarthronomyia hvoogaea Loew) 
H. F. Dietz (August 28) . "Light infest at ions l?by the chrysanthemum 
gall midge are occasionally found in the State but most florists 
are having little difficulty in exterminating this insect by using 
one fluid ounce of 40 per cent nicotine sulphate with 1 ounce of 
fish-oil or other cheap soap in 4 gallons of water, applying the 
spray every three days." 
MARGUERITE LEAF-MINER (Phytomyza ch rysanthemi Kowarz) 
H. F. Dietz (August 26). "The chrysanthemum leaf-miner seems to be 
coming back, especially where asters are grown under glass. They 
attack asters first and then go to chrysanthemums." 
THRIPS (species undetermined) 
H. F. Dietz (August 26). "An undetermined species of thrips is 
doing considerable damage to asters and chrysanthemums, especially 
in the northeastern part of the State ♦" 
ROSE 
SADDLE-BACK CATERPILLAR ( Sibine stimulea Clem.) 
C« 0, Houghton (September l) . 
damage to roses at Newark." 
"This insect is doing considerable 
ROSE MIDGE ( Dasvneura rhodophaga Coq.) 
H. F. Dietz (August 28) . "The rose midge is quite bad again on the 
varieties Ophelia, Premier, and Butterfly in the northeastern part 
of the State. Nightly fumigation with tobacco stems or prepared 
nicotine extract gives good control but I find a number of cases 
where even a fumigation for four weeks has not exterminated the 
pest ." 
LONG ROSE GALL ( Rhodites dichlocerus Harr.) 
E. P. Felt (September 23). "There was an unusually severe, though 
local, infestation of Rosa rugosa bushes in Michigan, judging from 
the report and specimens submitted. Some of the rose bushes had 
every growing tip badly infested and, consequently, satisfactory 
growth another season could be obtained only through the development 
of adventitious buds." 
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