Zobrazeno 1 - 10
of 42
pro vyhledávání: '"R. L. McGarr"'
Publikováno v:
Journal of economic entomology. 38
Autor:
R. L. Mcgarr, K. P. Ewing
Publikováno v:
Journal of Economic Entomology. 29:80-88
Publikováno v:
Journal of Economic Entomology. 63:1568-1573
In tests of candidate insecticides against some cotton insects, ultra low volume (ULV-64 oz/acre or less) sprays of EPN (O-ethyl O-p -nitrophenyl phenylphosphonothioate) were more effective than conventional sprays in field tests against boll weevils
Autor:
K. P. Ewing, R. L. McGarr
Publikováno v:
Journal of Economic Entomology. 30:850-854
Publikováno v:
Journal of Economic Entomology. 51:236-239
In laboratory tests at Brownsville, Tex., Sevin (1-naphthyl-N-methyl carbamate) applied as a spray to potted cotton plants was effective against the boll weevil ( Anthonomus grandis Boh.), the pink boll worm ( Pectinophora gossypiella (Saund.)) the b
Autor:
R. L. McGarr, K. P. Ewing
Publikováno v:
Journal of Economic Entomology. 31:669-674
Publikováno v:
Journal of Invertebrate Pathology. 8:320-324
Water extracts of plant parts were used to stimulate bollworm and tobacco-budworm feeding on virus-treated surfaces. Combinations of virus and water extracts of corn were more effective than virus alone in both laboratory and field tests.
Autor:
R. L. Mcgarr, K. P. Ewing
Publikováno v:
Journal of Economic Entomology. 26:943-953
Three years of cage experiments with four homopterous insects ( Homalodisca triquetra, Oncometopia undata, Graphocephala versuta , and Stictocephala festina ) showed that none of these species, when allowed to feed on cotton plants, was able material
Publikováno v:
Journal of Economic Entomology. 59:1458-1461
Insecticides of the methylcarbamate, dimethylcarbamate, and o -(methylcarbamoyl) oxime types were compared for effectiveness against larvae of the bollworm, Heliothis zea (Boddie), and the tobacco budworm, H. virescens (F.), in laboratory, field-cage
Autor:
R. L. Mcgarr
Publikováno v:
Journal of Economic Entomology. 26:953-956
Experiments have proved that Megalopsallus atriplicis, when allowed to feed on cotton, causes blasting or abortion of the young squares, and induces swellings and lesions on the stems and petioles and malformation of the leaves; and that Psallus bigu