How to control the pear thrips. (Euthrips pyri Daniel)
Foster, Shirley Watson.
creator
Jones, P. R. (Paul Robert)
joint author.
contributor
United States. Bureau of Entomology.
contributor
United States. Department of Agriculture.
contributor
text
book
Washington, D.C
U.S. Dept. of Agriculture, Bureau of Entomology
1911
1911
ENG
Title from caption.
Circular No. 131.
"Issued January 9, 1911."
At head of title: United States Department of Agriculture, Bureau of Entomology.
Distribution -- Economic importance. pp. 1.
Character of injury -- Life history. pp. 2.
Control measures -- Experiments in thrips control. pp. 6.
Cultivation -- Spraying. pp. 7.
Distillate-oil emulsion. pp. 8.
Commercial results -- Prunes, Santa Clara County -- Demonstration for 1909. pp. 10.
Results 1910 -- Plowing results. pp. 13.
Demonstrations for 1910. pp. 14.
Other demonstrations -- Pears, Contra Costa County. pp. 16.
Cherries, Sacramento County -- Recommendations. pp. 19.
Timing the applications. pp. 20.
Schedule of applications. pp. 21.
Materials to use. pp. 22.
Summary. pp. 24.
Agricultural pests
Pear thrips
Circular (United States. Bureau of Entomology), no. 131
https://www.biodiversitylibrary.org/bibliography/63462
811135968
10.5962/bhl.title.63462
LHL