Ecological studies on the potato psyllid as a pest of potatoes /
Wallis, R. L. 1902-
Ecological studies on the potato psyllid as a pest of potatoes / by R.L. Wallis. - Washington : U.S. Dept. of Agriculture, 1955. - 24 p. : ill., maps ; 23 cm. - Technical bulletin / United States Department of Agriculture ; no. 1107 . - Technical bulletin (United States. Department of Agriculture) ; no. 1107. .
Caption title.
Literature cited: p. [25]
agr55000129
Jumping plant-lice.
Potatoes--Diseases and pests.
S21 / .A72 no. 1107
1 / Ag84Te no.1107
Ecological studies on the potato psyllid as a pest of potatoes / by R.L. Wallis. - Washington : U.S. Dept. of Agriculture, 1955. - 24 p. : ill., maps ; 23 cm. - Technical bulletin / United States Department of Agriculture ; no. 1107 . - Technical bulletin (United States. Department of Agriculture) ; no. 1107. .
Caption title.
Literature cited: p. [25]
agr55000129
Jumping plant-lice.
Potatoes--Diseases and pests.
S21 / .A72 no. 1107
1 / Ag84Te no.1107