Zobrazeno 1 - 10
of 47
pro vyhledávání: '"E. P. Lampert"'
Autor:
E. P. Lampert, Randi V. Wilfert Eckel
Publikováno v:
Journal of Economic Entomology. 89:1017-1027
The relative attractiveness of tobacco etch virus (TEV) infected versus healthy flue-cured tobacco plants to alighting aphids under field conditions was evaluated in 1985 and 1986. In 1987, the effect of plant age and time of inoculation on aphid ali
Publikováno v:
Journal of Entomological Science. 29:471-481
Field and greenhouse experiments were conducted to determine if organophosphate (OP)-resistant (R) and OP-susceptible (S) tobacco aphids exhibited tolerance or resistance to aldicarb, a carbamate insecticide. In the greenhouse, OP-R and OP-S aphids w
Publikováno v:
Journal of Economic Entomology. 87:1157-1164
A 1-naphthyl acetate esterase was identified by isoelectric focusing in organophosphate resistant (red) tobacco aphids, Myzus nicotianae Blackman, which apparently was lacking in susceptible (green) individuals of the same species. This resistance-as
Publikováno v:
Journal of Insect Physiology. 40:423-429
A white mutant of the tobacco hornworm, Manduca sexta , was discovered among wild-type, blue-green larvae in a laboratory colony routinely supplemented with field-collected insects. The mutant is pinkish-white when reared on artificial diet and maint
Autor:
E. P. Lampert, Randi V. Wilfert Eckel
Publikováno v:
Crop Protection. 12:505-512
The effect of tobacco etch virus (TEV) infection on flue-cured tobacco (Nicotiana tabacum L.) plant growth was invisaged under field conditions in 1985 and 1986. Natural field infection of TEV was allowed to develop a patchy distribution of healthy p
Autor:
E. P. Lampert, Randi V. Wilfert Eckel
Publikováno v:
Journal of Economic Entomology. 86:1534-1545
The contribution of colonizing and transient aphids to the primary and secondary spread of tobacco etch virus (TEV) in flue-cured tobacco was evaluated in North Carolina in 1985 and 1986. Transient aphids were apparently responsible for both primary
Publikováno v:
Experientia. 49:571-575
Naphthalene thioesters were synthesized as substrates for a continuous, non- disruptive kinetic assay of general carboxylesterase activity. The continuous nature of the assay is based on the production of a soluble dianion chromophore from the reacti
Publikováno v:
Journal of Entomological Science. 28:308-314
Studies were conducted to determine the effect of pigmentation on the field survivorship of larvae of the tobacco hornworm, Manduca sexta (L.). Larvae of the white-mutant tobacco hornworm were found to have a lower mean survival rate as compared with
Autor:
D. L. Franks, E. P. Lampert
Publikováno v:
Journal of Entomological Science. 28:96-101
Laboratory colonies of white and black color-strains of the tobacco hornworm, Manduca sexta (L.) were used to study the inheritance of cuticular coloration where color is under the control of genes located on separate chromosomes. The white and black
Publikováno v:
Journal of Economic Entomology. 84:1175-1179
A statewide survey was conducted in tobacco fields throughout 17 counties in North Carolina to determine distribution and relative abundances of red and green color forms of the tobacco aphid, Myzus nicotianae Black man. Samples of tobacco aphids fro