bollworm造句
31 Planting resistant cotton varieties , agricultural and chemical control are important measures of integrated management of bollworm.
32 The control effect of resistant cotton to the experimental population of cotton bollworm (Helicoverpa armigera)was studied using life table in the laboratory in 1998.
33 The transmission of sperm by unirradiated and irradiated cotton bollworm, Helicoverpa armigera, was studied by live dissection of the female immediately after the initiation of mating.
34 A test to determine the toxicological effect of thiodicarb flowables on cotton bollworm (Heliothis armigera) was performed using methods of topical application leaf diping and contact residue.
35 Damage amount and damage loss to cotton by the various instar larvae of cotton bollworm, Helicoverpa armigera were got through inoculating larvae to cotton plant.
12