- 57 - 
INSECTS AFFECTING GREENHOUSE 
AND ORNAMENTAL PLANTS 
THRIPS (Thysanura) 
Florida. J. R. Watson (April 25): Florida flower thrips are becoming abun- 
j dant in Alachua County, especially on lupines. 
COMSTOCK MEALYBUG ( Pseudococcus comstocki Kuw.) . 
Michigan. R. Hutson (April 24) : There was a heavy infestation on flowering 
cherry in Detroit. 
OYSTERSHELL SCALE ( Lepidosaphes ulmi L.) 
New York. R. E. Horsey (April 22): A few were found on lilacs in two plant- 
ings at Rochester. 
Maryland. E. N. Cory (April 17): Noted at Towson. 
Minnesota. A. G. Ruggles, et al. (April 12): Requests for the control of 
this scale are coming in from the southern part of the State. 
South Dakota. H. C. Severin and G. I. Gilbertson (April 25): Wintered very 
successfully and seems well adapted to the State. Did considerable damage. 
COTTONY-CUSHION SCALE ( I eery a purchasl Mask.) 
Georgia. T* Thompson (April 11): Caused slight damage to ornamental shrubs 
observed in Quitman, Brooks County. 
Mississippi. C. Lyle, et al. (April 24): Light infestations were observed 
where ladybeetles were placed last fall in the Gulfport district. Two in- 
festations were observed on Pike County properties vjhere no ladybeetles were 
found. 
CALIFORNIA RED SCALE ( Aonidiella aurantii Mask.) 
Arizona. C. D. Lebert (April 25): A small infestation was found on ornamen- 
tals and citrus at Tucson. It was confined mostly to Mexican jasmine. 
AMARYLLIS 
A- PHALAENID ( Xanthopastis timais Cram.) 
Florida. J. R. Watson (April 25): Is common on amaryllis and to a lesser ex- 
tent on narcissus and Hemerocallis . 
MAGNOLIA 
MAGNOLIA SCALE ( Neole canium cornuparvum Thro) 
New York. R. E. Horsey (April 22): Overwintering scale badly infesting a 
small magnolia tree at Rochester in March. 
ROSE 
APHIDS (Aphiidae) 
South Carolina. F. F. Bondy (April 18): Complaints of injury to roses in 
Florence received during the week. 
