Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 4 of 4
Full-Text Articles in Entomology
Greenbug Control, Wm. M. Rogoff
Greenbug Control, Wm. M. Rogoff
Agricultural Experiment Station Entomology Pamphlets (1940-1952)
Greenbug infestations in the State of South Dakota are unusual and have generally been broken by the interaction of natural factors such as predators, parasites, and weather. In the 1949 outbreak, the greenbug was seldom if ever the sole cause of damage in infested fields and in most cases spraying would not have been paid for by the remaining crop. The chemicals available for control are exceedingly dangerous to man and livestock, and their use should not be encouraged except where a clear and definite need has been shown to exist.
Control Of Grasshoppers Through Chemical Sprays Or Dusts Or Baits, H.C. Severin
Control Of Grasshoppers Through Chemical Sprays Or Dusts Or Baits, H.C. Severin
Agricultural Experiment Station Entomology Pamphlets (1940-1952)
No abstract provided.
How To Control Insects Harmful To Alfalfa Seed Production In South Dakota, H.C. Severin
How To Control Insects Harmful To Alfalfa Seed Production In South Dakota, H.C. Severin
Agricultural Experiment Station Entomology Pamphlets (1940-1952)
In order that a grower of alfalfa seed may have the best chance of producing a. good seed yield, the harmful insects in the alfalfa field must be destroyed, while the beneficial pollinating insects should not be reduced but encouraged. The most harmful insects that affect the seed yield of alfalfa in South Dakota are the following: Grasshoppers of several species Crickets of several species Lygus and other plant bugs Clover, potato and other leaf hoppers Flea beetles of several species
The Use Of Aircraft In European Corn Borer Control, Gerald B. Spawn
The Use Of Aircraft In European Corn Borer Control, Gerald B. Spawn
Agricultural Experiment Station Entomology Pamphlets (1940-1952)
The European corn borer is at present considered to be the No. 1 insect pest of corn in South Dakota. It is now known (by specimen records) to be present in every county east of the Missouri river and in Lyman, Gregory and Tripp counties west of the Missouri River in South Dakota. During 1948 the corn borer did an estimated $2,500,000 worth of damage in our state~ In 1949 this damage figure was increased to $7,545,000.