CONTRIBUTIONS TO THE KNOWLEDGE OF MASSACHUSETTS COCCIDÆ.–III

Extract

(46) Aspidiotus hederœ, Vall.; 1829-1897. I.

This is a very common pest in all greenhouses at Lawrence, and no doubt in all greenhouses in the State. It is found at Lawrence on Ivy, Palms and Cycas. A variety determined by Prof. Cockerell as probably ericœ, Boisd., on heather (Erica) in a greenhouse at Lawrence. The scale is longer than typical hederœ, and of a yellowish cast, and also covered more or less with the epidermis of the plant. Hederœ has been recorded from Kansas, Utah, Illinois, California, Florida, Colorado, New Maxico, and New York, on Ivy, China-tree, Lemon, Oleander, Orange, Lace-fern=Asparagus plumosa, Acacia, Maple, Yucca, Plum, Cherry, Currant, Melia, Grass and Clover.