Zobrazeno 1 - 10
of 28
pro vyhledávání: '"M. E. Merkl"'
Publikováno v:
Journal of Economic Entomology. 76:294-297
Anthonomus grandis grandis Boheman, sterilized by being fed a diet containing 100 ppm of diflubenzuron for 5 days after emergence followed by 10 krad of irradiation, were tested in 0.8-ha plots in two locations. In south Mississippi, where a few nati
Autor:
T. R. Pfrimmer, M. E. Merkl
Publikováno v:
Environmental Entomology. 10:419-423
During the period 1955–1973, winter survival of the boll weevil, Anthonoumus grandis Boheman in Mississippi, as determined by examination of surface woods trash samples in the fall and sprrig, ranged from 0.2 to 51.6% for a state avg. The numbers o
Publikováno v:
Journal of Economic Entomology. 65:552-555
In the spring of 1969, male-baited traps for Anthonomus grandis Boheman were placed around ca. 4000 acres of cotton in a large-scale field test in Monroe County, after completion of a voluntary grower-sponsored reproduction-diapause control program t
Publikováno v:
Journal of Economic Entomology. 57:433-436
In 1960-61, tests were conducted in 3 cottonfields located on Mississippi to study the relationship between plant fruiting and the first entry of boll weevils, Anthonomus grandis Boheman, into diapause. Tests were set up also to evaluate the effectiv
Autor:
E. P. Lloyd, M. E. Merkl
Publikováno v:
Journal of Economic Entomology. 59:83-86
In a 2-year replicated field-cage experiment with boll weevils, Anthonomus grandis Boheman, first-generation progeny from estimated overwintered populations of 0, 14, 25, 50, and 100 weevils per acre damaged 0, 28, 46, 66, and 83% of the squares, res
Publikováno v:
Journal of Economic Entomology. 60:1696-1699
Azinphosmethyl applied as an ultra-low-volume spray at 0.2 and 0.25 lb per acre was as effective as a water-emulsion spray of methyl parathion (0.5 lb per acre) in a reproduction-diapause control experiment conducted in Carroll County, Mississippi, a
Publikováno v:
Journal of Economic Entomology. 54:979-984
During 1958 studies of the preferred feeding and egg-laying sites of the boll weevil ( Anthonomus grandis Boheman) were conducted at Stoneville, Miss. Females damaged the fruit of the cotton plant more than males. The preferred feeding and egg-laying
Publikováno v:
Journal of Economic Entomology. 53:711-714
In experiments at Stoneville, Mississippi, in 1957 and 1958 a Guthion-DDT mixture gave outstanding control of the boll weevil ( Anthonomus grandis Bah.). Sevin® (1-naphthyl methylearbamate), toxaphene-malathion, dieapthon, Bayer 29493 ( O,O -dimethy
Autor:
M. E. Merkl, T. R. Pfrimmer
Publikováno v:
Journal of Economic Entomology. 55:121-124
Good control of thrips ( Frankliniella spp.) was obtained with dimethoate, Di-Syston® ( O,O -diethyl S -[2-(ethylthio)ethyl] phosphorodithioate), and phorate granules applied in the furrow with the seed, and sprays of Shell SD-3562 (2-dimethylcarham
Autor:
D. D. Hardee, H. C. Mitchell, E. B. Mitchell, P. M. Huddleston, T. B. Davich, M. E. Merkl, William H. Cross
Publikováno v:
Journal of Economic Entomology. 62:161-165
Results of studies of female Anthonomus grandis Boheman made to determine the influence of biological factors Oil its response to male sex pheromone indicated that: (1) laboratory-reared males were as attractive and females were as responsive as nati