Zobrazeno 1 - 10
of 63
pro vyhledávání: '"H S, Hopf"'
Autor:
H. S. Hopf
Publikováno v:
International Journal of Pest Management: Part A. 11:45-53
Autor:
H. S. Hopf, Gottfried Fraenkel
Publikováno v:
Biochemical Journal. 34:1085-1092
Autor:
H. S. Hopf
Publikováno v:
International Journal of Pest Management: Part B. 12:242-248
Autor:
H. S. Hopf
Publikováno v:
Annals of Applied Biology. 39:193-202
Homogenates of the thoracic nervous system of Locusta migratoria migratoriodes are able to hydrolyse acetylcholine (ACh) and o-nitrophenylacetate (NPA), and this hydrolysis can be inhibited by tetraethylpyrophosphate (TEPP) at approximately the same
Autor:
H. S. Hopf
Publikováno v:
Annals of Applied Biology. 41:248-260
Autor:
H. S. Hopf
Publikováno v:
Annals of Applied Biology. 25:390-405
SUMMARY From investigations into the enzymes of the alimentary canal and a comparative analysis of ash bark and the frass of Hylesinus fraxini it appears that the food relations of the ash-bark beetle are as follows: 1 Proteins are derived directly f
Autor:
H. S. Hopf, D. L. Gunn
Publikováno v:
Journal of Experimental Biology. 18:278-289
The amount of walking about shown by adult Ptinus tectus is not a simple function of temperature. It depends on culture temperature, on whether the temperature is constant or changing and, with changing temperatures, on the speed and direction of cha
Autor:
H. S. Hopf
Publikováno v:
International Journal of Pest Management: Part A. 7:315-333
Autor:
H. S. Hopf
Publikováno v:
International Journal of Pest Management: Part B. 14:117-119
Publikováno v:
Bulletin of the World Health Organization. 36(6)
Triphenyltin acetate has proved successful as a molluscicide in the laboratory and in small-scale field trials. However, in view of its cost and its toxicity to swamp rice at molluscicidal concentrations, an effort has been made to explore the mollus