Zobrazeno 1 - 10
of 26
pro vyhledávání: '"E. R. Mcgovran"'
Publikováno v:
Soap and sanitary chemicals. 22(6)
Autor:
E R, McGOVRAN, J H, FALES
Publikováno v:
Soap and sanitary chemicals. 22(9)
Publikováno v:
Journal of Economic Entomology. 43:533-537
Autor:
E. R. Mcgovran
Publikováno v:
Annals of the Entomological Society of America. 24:751-761
This method of measuring the amount of tracheal ventilation produced by the respiratory movements of some insects consists of enclosing the head and thorax of an insect in one chamber and the abdomen in an adjoining chamber. The insect is sealed into
Autor:
E. R. McGovran
Publikováno v:
Journal of Economic Entomology. 30:876-879
Publikováno v:
Journal of Economic Entomology. 33:525-531
Autor:
L.O. Ellisor, E. R. McGovran
Publikováno v:
Journal of Economic Entomology. 29:980-983
Publikováno v:
Annals of the Entomological Society of America. 37:414-419
The variation in insect resistance to insecticides is a common phenomenon observed in testing materials for toxicity. Environmental factors, such as temperature, humidity, and diet, have been found to affect resistance, but few attempts have been mad
Autor:
E. R. McGovran
Publikováno v:
Journal of Economic Entomology. 25:271-276
CO2, CS2, HCN and Nicotine in certain concentrations increased the volume of air inhaled into the tracheal system by the respiratory movements of the grasshoppers that were studied. Minimum lethal concentrations of HCN and CS2 temporarily increased t
Publikováno v:
Annals of the Entomological Society of America. 35:23-40
Insects possess natural resistances to the actions of poisonous substances. The resistance to poisoning varies from species to species, from individual to individual, at different times during the life of an insect, and under different conditions (Sh