(n.) The larva of a moth (Heliothis armigera) which devours the bolls or unripe pods of the cotton plant, often doing great damage to the crops.
Example Sentences:
(1) A kidney bean meal diet was the most satisfactory laboratory diet for the larvae of the American bollworm Heliothis armigera Hubn.
(2) Use of the test provides a good estimation of the percent of diapause larvae in populations of pink bollworm in cotton fields in California and Arizona.
(3) Gossyplure used to bait field traps at a dose of 50 micrograms admixed with 4-16 milligrams of an antioxidant attracted and captured male pink bollworm moths early in the cotton-growing season (early May) in Israel, whereas 20 milligrams of hexalure plus antioxidant was completely inactive under identical conditions.
(4) Whole plants, assayed under conditions of high insect pressure with Heliothis zea (cotton bollworm) showed effective square and boll protection.
(5) An ELISA test was developed to assay for the presence of a protein, pectinophorin, that is expressed only in diapausing last instar larvae of the pink bollworm, Pectinophora gossypiella Saunders.
(6) A mixture of the cis and trans forms of propylure (10-propyl-trans-5,9-tridecadienyl acetate), the sex pheromone of the female pink bollworm moth, has been separated into its pure isomers by thin-layer chromatography.
(7) The method is applied to determine activity of acetylcholinesterase in a larvae bollworm (from the formation of thiocholine from acetylthiocholine).
(8) The synthetic sex pheromone (gossyplure) of the pink bollworm was evaporated into the atmosphere of three cotton fields during an entire growing season.
(9) A diapause associated protein was electrophoretically isolated from the hemolymph of diapausing last instar larvae of the pink bollworm Pectinophora gossypiella.
(10) Aflatoxin accumulation in Deltapine 16 cottonseed, grown in Yuma, Ariz., in a 3-year study, was significantly influenced by the timing of irrigation terminations and by level of pink bollworm infestations.
(11) The cytochrome P-450 content, activity of microsomal monooxygenases, nonspecific esterases and glutathione S-transferases were studied at different stages of development of the Colorado beetle, cotton bollworm, cabbage butterfly, wax moth from the laboratory and natural populations.
(12) The restriction endonucleases Bam HI, Pst I, Sla I were used to study DNA of nuclear polyhedrosis virus (NPV) of bollworm, two NPV isolates of cabbage moth, NPV of black arches moth isolated from a natural population of caterpillars.
(13) These alkaloids have antifeedant activities against the pink bollworm, Pectinophora gossypiella.
(14) The polyhedral inclusion body of the cotton bollworm nuclear polyhedrosis virus contains virions occluded in an orthogonal crystalline matrix.
(15) Significantly less aflatoxin also was found in the 1971 and 1973 plots where low levels of pink bollworm infestations were maintained.
(16) The genetic basis of the duration and incidence of male wing fanning to pheromone in the pink bollworm moth, Pectinophora gossypiella (Saunders), was examined by artificial selection.
(17) The action spectra for prevention of diapause in larvae of the European corn borer and the pink bollworm exhibited maxima lying between 420 and 490 nm.
Pest
Definition:
(n.) A fatal epidemic disease; a pestilence; specif., the plague.
(n.) Anything which resembles a pest; one who, or that which, is troublesome, noxious, mischievous, or destructive; a nuisance.
Example Sentences:
(1) In pest control operations, organophosphorus compounds (OP) have been sprayed as insecticides, blood cholinesterase (ChE) activities and urinary alkylphosphate levels were measured for both OP-sprayers (n = 102) and non-sprayers (n = 35) in pest control companies, and the relationship between the analytical results and spraying conditions was investigated.
(2) The main animal paramyxoviruses are parainfluenza 3 (agent of shipping fever) in cattle; NDV (cause of fowl pest) and Yucaipavirus in birds; Sendai and PVM in mice; Nariva virus in rodents; possibly bovinerespiratory syncytial virus; and SV5 and SV41 in monkeys.
(3) Problems that arise when chemical control of pests is applied--risks for producer, applier, consumer and the environment as well as development of resistance against pesticides--have led to the conclusion that other forms of pest control have to be searched for to guarantee production of sufficient crops in the future.
(4) Kairomones may prove useful in manipulating natural or released biological agents for more effective biological control of insect pests.
(5) In most ways they are model compounds for integrated control and pest management activities and thus merit greater attention than they have received to elucidate the fundamentals underlying their unusual properties and actions.
(6) Salivary fluids of Blaberus craniifer, a common pest species of cockroach, were found to produce leukocytolysis and hemagglutination reactions of human blood cells under in vitro conditions.
(7) Immunity induced in birds after immunization was followed serologically by the titre of serum antihaemaglutinins and by provocation with a highly virulent pseudo-pest virus strain.
(8) The technique is based on adsorbing out the cross reacting antibodies to peste des petits ruminants antigens from a rinderpest immune serum, thereby leaving active the specific antibody to rinderpest which is determined by haemagglutination-inhibition test.
(9) Cattle are the primary host for the major pest mosquito Psorophora columbiae in the rice production region of the Gulf-south.
(10) The cohort encompassed 1,214 male subjects with at least 5 years pest control work between 1945 and 1980.
(11) None of the immune sera could reliably differentiate Hb G-Pest from Hb A1.
(12) The two morbilliviruses rinderpest virus (RPV) and peste des petits ruminants virus (PPRV) are closely related and cause severe disease in large and small ruminants, respectively.
(13) Two methods, one nontemplate (variance ratio) and one template (cross-correlation), were evaluated for response recognition while three threshold tracking methods were explored: clinical, Békésy, and PEST (parameter estimation by sequential testing).
(14) The model suggests, broadly, that non-targets are unlikely to be seriously threatened in such cases, and also that non-targets, far from undermining pest control, are quite likely to contribute to its efficacy.
(15) Worse, pests like the berry borer beetle and leaf rust fungus are flourishing as the world warms.
(16) Because of their broad spectrum of activity, longevity, and safety, these compounds, along with several other members of this family, have important applications as repellents of nuisance pests and of arthropods of public health importance.
(17) More thorough evaluation of tactics that seek to optimize benefits of more than one insecticide will require rigorous experiments with the particular pest and pesticide combinations.
(18) Minnesota Governor Mark Dayton issued an executive order last August that requires farmers to demonstrate a need for pest control before using neonics.
(19) A cohort of 1,214 pest control workers employed during 1945-1980 for at least 5 yr was investigated with regard to cancer mortality.
(20) The review of developments in these crops suggests that programs of control for individual crops and perhaps for complexes of associated crops will be developed according to specific needs of the crop, the geographic area and the pests, the technologies available and the socioeconomic and political factors of relevance.