Walnut aphid investigations: 1951 tests on Payne walnuts help develop economical control program under northern California conditions

Walnut aphid investigations: 1951 tests on Payne walnuts help develop economical control program under northern California conditions

Satisfactory and economical control of the walnut aphid throughout the season is possible.

Manylion Llyfryddiaeth
Prif Awduron:	A Michelbacher, O Bacon, W Wade
Fformat:	Erthygl
Iaith:	English
Cyhoeddwyd:	University of California Agriculture and Natural Resources 1952-04-01
Cyfres:	California Agriculture
Mynediad Ar-lein:	https://californiaagriculture.org/article/114586-walnut-aphid-investigations-1951-tests-on-payne-walnuts-help-develop-economical-control-program-under-northern-california-conditions

Eitemau Tebyg

Codling moth on walnut: 1951 tests compare effectiveness of conventional and air-carrier sprayers on Payne walnuts in northern California
gan: A Michelbacher, et al.
Cyhoeddwyd: (1952-02-01)

Codling moth on walnuts: Tests made on Payne walnuts in northern California compared effectiveness of sprays and types of sprayer
gan: A Michelbacher, et al.
Cyhoeddwyd: (1953-03-01)

Payne walnuts: Codling moth investigations in northern California and recommendations for 1949
gan: A Michelbacher, et al.
Cyhoeddwyd: (1949-03-01)

Walnut aphid study: Shows systox promising material for conditions in northern California
gan: A Michelbacher, et al.
Cyhoeddwyd: (1953-04-01)

Investigations on the control of codling moth on the payne walnut in central California
gan: A Michelbacher, et al.
Cyhoeddwyd: (1947-06-01)

Walnut aphid
gan: W Middlekauff, et al.
Cyhoeddwyd: (1948-04-01)

Timing of spray treatments for codling moth: Control on Payne walnuts in northern California influenced by size of nuts when sprayed
gan: A Michelbacher, et al.
Cyhoeddwyd: (1950-03-01)

Filbertworm control trials: Two new insecticides tested on Payne, Franquette and Hartley walnuts in two experimental orchards in northern California
gan: A Retan, et al.
Cyhoeddwyd: (1958-04-01)

Walnut aphid control: Aphicide in May codling moth spray effective in northern California
gan: W Middlekauff, et al.
Cyhoeddwyd: (1950-05-01)

Walnut pest studies, 1950: Conventional and air carrier sprayers compared in codling moth and aphid control for northern California
gan: A Michelbacher, et al.
Cyhoeddwyd: (1951-04-01)

Walnut aphid control: Studies in northern California of effectiveness of addition of aphicide to codling moth spray
gan: W Middlekauff, et al.
Cyhoeddwyd: (1949-04-01)

Walnut aphid investigations: Tests in northern California during the 1953 season stressed need for thorough treatment for control
gan: A Michelbacher, et al.
Cyhoeddwyd: (1954-07-01)

Spider mites on walnuts: Continued experiments in northern California groves indicate insect control program to keep mites in check
gan: A Michelbacher, et al.
Cyhoeddwyd: (1952-06-01)

Walnut aphid investigations: Evaluation of new and old aphicides object of experiments conducted in northern California test plots in 1958 season
gan: A Michelbacher, et al.
Cyhoeddwyd: (1959-03-01)

Sunburn protection for newly-grafted Payne walnuts
gan: G Sibbett, et al.
Cyhoeddwyd: (1975-04-01)

Migrating aphids on walnuts: Regimentation of aphid-free orchards a constant threat from infested orchards on windward side
gan: A Michelbacher, et al.
Cyhoeddwyd: (1953-06-01)

Soft scales on walnut in 1956: Increase in soft scale populations on walnuts in northern California effected by several factors in complex problem
gan: A Michelbacher, et al.
Cyhoeddwyd: (1957-03-01)

Filbertworm control: Experimental insecticides show promise in tests on northern California walnuts
gan: A Retan, et al.
Cyhoeddwyd: (1959-07-01)

Spider mites on walnuts: False spider mite, European red mite, and Pacific spider mite infestations in northern California walnuts during 1955
gan: A Michelbacher
Cyhoeddwyd: (1956-07-01)

Walnut aphid management …aphid effects on walnut production and quality
gan: M Barnes, et al.
Cyhoeddwyd: (1971-05-01)

Orchard and plant management affect control of navel orangeworm on walnuts in northern California
gan: A Michelbacher, et al.
Cyhoeddwyd: (1961-09-01)

Imported french parasite of walnut aphid established in California
gan: E Schlinger, et al.
Cyhoeddwyd: (1960-11-01)

Navel orangeworm: Field control of walnut pest in northern California aided by restrictive measures
gan: A Michelbacher, et al.
Cyhoeddwyd: (1955-03-01)

Codling moth investigations: Severe infestations in northern California walnut orchards in 1958 followed conditions favorable to the second brood
gan: A Michelbacher, et al.
Cyhoeddwyd: (1959-04-01)

Systemic pesticides on walnut: Preliminary studies promising for control of European red mite and walnut aphid in southern California
gan: J Ortega
Cyhoeddwyd: (1953-10-01)

The walnut husk fly: Pest new in northern California found in Sonoma valley and near Santa Rosa
gan: A Michelbacher, et al.
Cyhoeddwyd: (1956-05-01)

Northern California walnuts: Environmental resistance a factor in the control of codling moth populations shown in tests at Linden
gan: A Michelbacher, et al.
Cyhoeddwyd: (1950-07-01)

…Walnut aphid and the sunburn problem
gan: G Sibbett, et al.
Cyhoeddwyd: (1971-05-01)

Aphid resistant to parathion: Strain of walnut aphid in Sun Jose area found to have developed definite resistance to parathion
gan: A Michelbacher, et al.
Cyhoeddwyd: (1954-05-01)

Navel orangeworm on walnuts: Infestations in northern California orchards dependent on population overwintering in past crop's waste left in field
gan: A Michelbacher
Cyhoeddwyd: (1956-06-01)

Walnut aphid control: Comparative study of control treatments made during heavy infestations in 1956
gan: A Michelbacher, et al.
Cyhoeddwyd: (1957-05-01)

Filbertworm Injury to Walnuts
gan: A Michelbacher, et al.
Cyhoeddwyd: (1956-01-01)

Codling moth infestations up: Damage to harvested walnuts increased markedly in northern California during the 1956 season in comparison with 1955
gan: A Michelbacher, et al.
Cyhoeddwyd: (1957-02-01)

Dusky-veined walnut aphid studies
gan: W Olson
Cyhoeddwyd: (1974-07-01)

Codling moth on walnuts in '55: Downward trend in infestations of 1955 in northern California not uniform and need of control treatments in 1956 indicated
gan: A Michelbacher, et al.
Cyhoeddwyd: (1956-02-01)

Induced increase of soft scale: Imbalance between scales and natural enemies on walnut trees in northern California results in scale population increases
gan: A Michelbacher, et al.
Cyhoeddwyd: (1958-11-01)

Guthion-resistant strain of walnut aphid parasite
gan: M Hoy, et al.
Cyhoeddwyd: (1988-07-01)

Calico scale on walnuts: Problem of soft scales on walnut increasing but natural enemies still exert suppressing influence on calico scale
gan: A Michelbacher, et al.
Cyhoeddwyd: (1956-09-01)

Effect of environment on reproduction in dusky-veined walnut aphids
gan: W Olson
Cyhoeddwyd: (1975-05-01)

Walnut aphid becoming a costly midsummer pest
gan: G Sibbett, et al.
Cyhoeddwyd: (1982-05-01)