Melon aphid control: Effectiveness of insecticides influenced by weather, predator populations, and infestations in adjacent fields
AuthorsA. E. Michelbacher
W. W. Middlekauff
Authors AffiliationsA. E. Michelbacher is Assistant Professor of Entomology and Associate Entomologist in the Experiment Station, Berkeley; W. W. Middlekauff is Assistant Professor of Entomology and Assistant Entomologist in the Experiment Station, Berkeley; Charles Hanson is Research Assistant, Division of Entomology, Berkeley.
Hilgardia 4(6):14-15. DOI:10.3733/ca.v004n06p14. June 1950.
The melon aphid,Aphis gossypii Glov. was extremely abundant and widespread in California during the 1949 season. In some areas very large and destructive populations were encountered, and large quantities of aphicides were used to combat the pest. The seriousness of the infestation afforded ample opportunity to evaluate the effectiveness of several insecticides in controlling the pest on many varieties of melons including cantaloupe, honeydew, Persian, crenshaw, casaba and watermelon.
Also in this issue:Weather effects on oranges: Fruit size and yields influenced by temperature, blossoming date and age of trees
Sugar beet growth research: All factors affecting growth of plants now subject to individual study in controlled environment laboratory
Giant-berry grapes: Principles of genetics employed to propagate varieties producing berries of larger size
Washington navel orange juice: Quality and mineral composition affected by chemical fertilizers, manure and covercrops
Navel orange juice bitterness: Rootstock determines amount of bitterness in juice of Washington Navel oranges investigations reveal
Return-stack orchard heater: Virtually smokeless heating service unde for 180 hours without cleaning demented Heater
Wind machines: Operating costs in field trials less than heaters but protection is limited
Freeze injuries to citrus: Tests during 1949 reveal facts important to growers of Valencia oranges and Marsh grapefruit
Insect pests of alfalfa seed: Proper timing of control measures increases yield and quality of alfalfa seed
The effect of dormant pruning on the carbohydrate metabolism of Vitis vinifera