| УДК |
Аннотация: At present, more insecticide is applies in North California for the control of hornworms than for the control of any other tobacco pest. Both the tobacco hornworm, and the tomato hornworm are found on tobacco, but the former is by far the more important. Hornworms can be successfully controlled with a number of different insecticides, but the use of chemicals on tobacco presents a number of problems that may assume greater importance in the future. Therefore, to investigate any new material or method for control which offers the possibility of reduced chemical residues. Bacillus thuringiensis Berliner, while harmless to humans, livestock, and plants, has shown promise in the control of several lepidopterous pests.
Доп.точки доступа:
Steinhaus, E.A.; Guthrie, F.E.
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