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California Citrus Pests and Their Control [research Bulletin]: A Description ...
William Hunter Volck
Visualização de excertos - 1931
Exchange Pest Control Circular: Subject Series, Edições 1-6
Sunkist Growers. Pest Control Dept
Visualização de excertos - 1944
100 per cent acreage Angeles County aphis application cc dosage cent dosage cent strength citricola scale citrus thrips color combination treatment commercial control condition crop district early fumigation Eastern Los Angeles effective emulsions Entomologist followed by fumigation fruit fly gallons grower hatch heavy infestations heavy oil injury insect insecticide July or August larvae late autumn light infestations Lime Sulfur mealybug Mediterranean fruit fly medium oil sprays Navel October oil and Lime oil emulsion Orange County packing house past season Peerless pest control picks preferred purple scale Recommendations for Control red scale control red spider resistant black scale Riverside County San Bernardino County San Diego County Santa Barbara County scale kill spider control spreader straight oil sprays sulfur dust sulphur summer tank-mix Triona Triple X Heavy Triple X Medium Triumph and Lime Triumph oil Valencias Ventura County Volck Concentrate Volck Medium Western San Bernardino winter fumigation yellow scale