Mealybugs on pears: Biological control by utilizing natural enemies
AuthorRichard L. Doutt
Author AffiliationsRichard L. Doutt is Junior Entomologist, Division oj Biological Control, Experiment Station, Berkeley.
Hilgardia 2(3):6-6. DOI:10.3733/ca.v002n03p6. March 1948.
Mealybugs usually are susceptible to biological control.
Doutt R. 1948. Mealybugs on pears: Biological control by utilizing natural enemies. Hilgardia 2(3):6-6. DOI:10.3733/ca.v002n03p6
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Irrigation: During a rainfall-deficient year
Stubble mulch: As a protective measure against erosion of grainland in California
Table grapes: Relation of heat summation to time of maturing and palatability
Commercialized farming: Requires better management
Weeds are costly: Represent about half of the total cultivation expenses of crop
Selective weed killers: Synthetic compounds important development in agriculture
Punjab flax: For seed production in Imperial Valley
Suction harvester: Picks up almonds from ground at rate of about four acres a day
Quick decline: Experiments seek control of virus-caused disease of orange trees
Ash bug control: Timing of application of insecticide important
Fly strike in sheep: Quick-acting contact poisons tested
New variety of canning tomato: Recommended for trial where wilt is serious
A study of resistance to western yellow blight of tomato varieties