Fumigation for cyclamen mite: Methyl bromide fumigation can give good control of pest on strawberries when treatment is properly timed and applied
AuthorWilliam W. Allen
Author AffiliationsWilliam W. Allen is Assistant Entomologist, University of California, Berkeley.
Hilgardia 11(9):9-15. DOI:10.3733/ca.v011n09p9. September 1957.
Fumigation of strawberry beds with methyl bromide can give better control—99% and higher—of the cyclamen mite than any other method, however, the treatment costs approximately $150.00 an acre. At the maximum, two applications are needed per year, and with perfected techniques a single fumigation probably will suffice. However, fumigation must be carried out carefully to obtain maximum control and must be done precisely to avoid damage to the plants because the dosage that will give good control is rather close to that which will give plant injury and the proper dosage varies with the temperature surrounding the plants. At any one dosage better control is obtained at higher temperatures, but at the same time there is an increase in the amount of injury.
Also in this issue:Integrated management of water: Public districts provide a form of organization for integrating the management of surface and ground water
Pear transit simulated in test: Four varieties of pears included in experiments to evaluate ability of containers to withstand damage and protect fruit
Consumer acceptance surveys: Samples of experimental food products submitted to public taste-testing in attempt to estimate consumer acceptance
Yield gain by delayed harvest: Continuing fruit growth of Yellow Newtown apples increased yield in tonnage and quality when harvested in late October
Filbertworm injury to walnuts: Seasonal population trend of filbertworm moths as shown by trapping records may indicate severity of damage to crop
Sugar pine seedling survival: Investigations indicate seed storage conditions important factor affecting vigor and subsequent survival of seedlings
Zinc deficiency of tomatoes: Corrective applications of zinc-supplying chemicals to soil tested in trials with transplanted and direct-seeded plants
Chemical weed control tests: Yields of flower seed increased in experiments with various chemicals to control annual weed pests costly to growers
White paint for farm buildings: Characteristics of white paint prevent excessive heating of metal farm structures by radiation from sun, sky, environs
Aphids feeding on celery in California
Western celery mosaic