Results 171 to 180 of about 4,114 (216)
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Spatio‐temporal distribution of Anthonomus grandis grandis Boh. in tropical cotton fields
Pest Management Science, 2022AbstractBACKGROUNDKnowledge of the spatio‐temporal distribution of pests is important for the development of accurate management approaches. The boll weevil, Anthonomus grandis grandis Boh., is a deleterious cotton, Gossypium hirsutum L., pest in the western hemisphere. The spread of boll weevils across cotton fields remains poorly understood.
Andréa A. S. Oliveira +8 more
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Physicochemical characteristics of glycogen from Anthonomus grandis Boheman
Comparative Biochemistry and Physiology, 1968Abstract Glycogen was extracted from the boll weevil, Anthonomus grandis Boheman, with 5% trichloroacetic acid (TCA) and with cold chlorofomr-glycine buffer (cold water extraction). Glucose was the only sugar detected in acid hydrolyzates.
N L, Betz, W C, Nettles, A F, Novak
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Diapause in Anthonomus grandis Boh.
Journal of Economic Entomology, 1959Part of the boll weevil, Anthonomus grandis Boh., population enters diapause during late summer and early fall in Louisiana. Winter is passed in this condition. Diapause in this insect is characterized by cessation of gametogenesis and atrophy of gonads, increase in fat content, decrease in water content, and decrease in respiratory rate.
J. R. Brazzel, L. D. Newsom
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Karyotypic analysis of the cotton boll weevil, Anthonomus grandis Boheman
Genetica, 2000The diploid chromosome number of the cotton boll weevil, Anthonomus grandis Boheman, is 44. Both C- and N-banding techniques of mitotic cells demonstrated constitutive heterochromatin in the p arm of the eight largest chromosomes, the p arm of the X chromosome, and the centromeric region of autosomal groups A-D.
L R, McNally, M L, Beck, C J, Biggers
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Collection of pheromone from atmosphere surrounding boll weevils,Anthonomus grandis
Journal of Chemical Ecology, 1989An effluvial method was developed to collect the pheromone, grandlure from actively calling male boll weevils,Anthonomus grandis Boheman. The adsorbant, Porapak Q (ethylvinylbenzene-divinylbenzene), was utilized to trap and concentrate the pheromone.
J F, Chang +4 more
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Toxic sugars and longevity of Anthonomus grandis
Journal of Insect Physiology, 1972Abstract Toxic sugars ( d -arabinose, l -rhamnose, and l -sorbose) were fed to adults of the boll weevil, Anthonomus grandis. Based on longevity as a criterion, arabinose was the most toxic of the three sugars. When fed to newly emerged adults, sucrose protected against arabinose poisoning.
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Annals of the Entomological Society of America, 1981
A study of boll weevil digestive anatomy revealed previously unknown aspects, e.g. particularly, a series of dentate plates at the pyloric valve region, and micropores over the intima of the rest of the hindgut. Topographic differences were found between the brush border of the anterior midgut and that of the posterior midgut, and a cluster of ...
M. W. Macgown, P. P. Skorowski
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A study of boll weevil digestive anatomy revealed previously unknown aspects, e.g. particularly, a series of dentate plates at the pyloric valve region, and micropores over the intima of the rest of the hindgut. Topographic differences were found between the brush border of the anterior midgut and that of the posterior midgut, and a cluster of ...
M. W. Macgown, P. P. Skorowski
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Anthonomus grandis . [Distribution map].
Distribution Maps of Plant Pests, 2005Abstract A new distribution map is provided for Anthonomus grandis Boheman. Coleoptera: Curculionidae. Attacks cotton, Abutilon spp., Hibiscus spp., Thurberia thespesioides . Information is given on the geographical distribution in USA,
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Pectinases from boll weevil larvae, Anthonomus grandis
Journal of Insect Physiology, 1972Abstract Assays were conducted throughout a wide pH range to measure the ability of extracts from third instar boll weevil larvae to degrade pectic substances. Pectin was deesterified and was depolymerized by both hydrolytic and trans -eliminative mechanisms. Sodium polypectate (deesterified pectin, or pectic acid) was depolymerized solely by trans
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ChemInform Abstract: SEXUALLOCKSTOFFE DES MAENNLICHEN RUESSELKAEFERS ANTHONOMUS GRANDIS BOHEMAN
Chemischer Informationsdienst. Organische Chemie, 1970AbstractDie Sexuallockstoffe des männlichen Rüsselkäfers Anthonomus grandis Boheman sind ein Gemisch der Terpenalkohole (+)‐cis‐2‐Isopropenyl‐1‐methylcyclobutan‐äthanol (I) und cis‐3,3‐Dimethyl‐Δ1,β‐cyclohexan‐äthanol (II) sowie der Terpenaldehyde cis‐3,3‐Dimethyl‐Δ1,β‐cyclohexanacetaldehyd (III) und der entsprechenden trans‐Verbindung (IV).
J. H. TUMLINSON +4 more
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