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del, and Prince George. April 19, here at the station, I found several 
larvee of a creamy color attached to leaves; although still living, they 
were unable to move. I made a careful examination of them and came 
to the conclusion that they were being destroyed by the fungus Lmpusa 
(Entomophthora) spherosperma often found on this species. My identi- 
fication of this disease was afterwards verified by Mr. B. M. Duggar, of 
Cornell University, who has given much study to the subject of insect 
diseases. From April 19 to May 12 the contagion seemed to increase 
in intensity, and it was not an uncommon thing to find four or five dead 
larve flat on the surface or curled about the edges of a leaf. They 
were also on the heads of clover, stems of timothy, weeds, grass, in 
fact, on anything that projected above the surface of the ground. By 
May 15 it was almost impossible to find a single living, healthy larva, 
and by the 20th they had disappeared. The disease was widespread 
throughout the counties above mentioned, as shown by personal inspee- 
tion or the examination of material sent to me. 
Next in order of succession came several species of flea-beetles. A 
little blackish species (Chetocnema pulicaria) was particularly abun- 
dant and destructive to young corn from May 6 to May 25. They were 
more numerous on sugar corn than field corn, and almost compietely 
ruined the first planting in parts of Prince George, Anne Arundel, 
Howard, Montgomery, Kent, and Worcester counties. 
Epitrix cucumeris was very destructive to young potatoes, and was 
observed as most abundant from May 15 to the 21st. Tobacco was 
injured slightly by ELpitrix parvula the first ten days in June. 
The potato stalk-borer (Trichobaris trinotata) has been reported from 
upper Baltimore County as doing much injury. I collected several 
beetles from eggplants here at the station June 19. 
~ The tobacco worm, Sphing (Protoparce) carolina, or *hornblower,” as it 
is called in this State, has been unusually destructive to tobacco in 
Anne Arundel, Prince George, Charles, St. Mary, and Calvert coun- 
ties this year. The tobacco growers of this section have greater fears 
of the second brood than of the first. 
The melon plant-louse (Aphis gossypii) early this season was very 
abundant on cantaloupes in Somerset, Wicomico, and Dorchester coun- 
ties. As noted in Bulletin 48 of the Md. Agr. Exp. Sta., we have found 
kerosene emulsion, applied with the Success kerosene emulsion sprayer, 
very effective in the destruction of this pest. Aphis brassicw, A. per- 
sice-niger and Myzus cerasi were also prominent among the plant-lice 
this spring on account of their numbers. 
The striped cucumber beetle (Diabrotica vittata) and the harlequin 
cabbage bug (Murgantia histrionica) have both occasioned much corre- 
spondence. The former has attacked cantaloupe, wetermelon, squash, 
and cucumber very seriously in many sections of the State. The latter 
has confined its depredations principally to cabbage and kale. 
The strawberry weevil (Anthonomus signatus) has made its usual 
5441—No, 9——6 
