Georgia 
Missouri 
Nebraska 
Utah 
Florida 
Ohio 
North Dakota 
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INSSCTS AFFECTIN3 GREENHOUSE AND 
ORNAMENTAL PLANTS AND LAT7NS 
APHIDS (Aphiidae) 
0. I. Snapp (May 20): Aphids are apparently more 
abundant here this year than usual. They are damaging 
plantings around homes. 
L. Haseman (May 27): Snowballs, common spirea, as well as 
shade and fruit trees, have developed unusually heavy in- 
festations of plant lice through central Missouri. 
M. H. Swenk (May 13) : Snowball aphids ( Aphis vi bur ni cola 
GilL) were abundant and injurious on snowball during the 
first half of May. 
G. F.Knowlton (May 19): Two species of aphids are damaging 
snowball bushes in most parts of northern Utah. 
A SPANWORM ( Melanchroia chephise Cram. ) 
J. R. Vfatson (May 20):' Heavy infestations of caterpillars 
occurred in Polk County on the ornamental plant Phyllanthus. 
Large hedges of this plant were practically defoliated. 
GREENHOUSE WHITEFLY ( Trial eur o des vaporariorum ffestw.. ) 
E. W.Mendenhall (April 30): Pelargonium, salvia, ageratum, 
lantana, heliotrope, fuchia, hibiscus, and geranium are badly 
infested with the greenhouse whitefly in some of the green- 
houses in Springfield, Clark County. 
FUNGUS GNATS (Mycetophilidae) 
J. A. Munro (May 21): Specimens of fungus gnat larvae 
(species undetermined) were received from Judson, Morton 
County, on May 16. They were reported as being abundant 
in hotbeds and responsible for stunting the development 
of young plants. 
ARB0RVITA5 
ARBORVITAE LEaF MINER ( Argyresthia thuiella Pack. ) 
Connecticut M. P. Zappe (May 12): This insect is causing considerable 
injury on ornamental plantings of arborvitae. 
AN APHID ( Dilachnus sp.) 
Mississippi H. Gladney (May 15): An aphid ( Dilcchr.us so.) is very 
abundant on arborvitae at Ocean Springs, 
