scholarly journals Between-season attraction of cotton boll weevil, Anthonomus grandis Boh. (Coleoptera: Curculionidae) adults by its aggregation pheromone

2001 ◽  
Vol 58 (2) ◽  
pp. 229-234 ◽  
Author(s):  
Wedson Desidério Fernandes ◽  
Sérgio Luis de Carvalho ◽  
Mohamed Habib
Keyword(s):  
Aggregation Pheromone ◽  
Chemical Control ◽  
Prey Availability ◽  
Evaluation Process ◽  
Boll Weevil ◽  
Anthonomus Grandis ◽  
Cotton Boll ◽  
Randomized Sampling ◽  
Sampling Points ◽  
To Receive

The present study was undertaken to investigate the attractiveness of boll weevil adults by its aggregation pheromone under winter field conditions. Two experimental fields were utilized at "Casa Branca", SP, Brazil. For each one, three areas were established near the refuge vegetation, sparated 500 m from each other. Each area was divided in three sub-areas or blocks of 100 m² to receive pheromone applications (2.5 g per block). In addition to the pre-application counting, five additional evaluations were carried out after the pheromone applicaton. Ten randomized sampling points per block were considered in each evaluation process. A. grandis adults responded immediately to the pheromone applications, and were captured for 14 days . The highest level of attractiveness was observed 24 hours after application. The application of the boll weevil aggregation pheromone during winter could increase the predation by natural enemies, due to the increase of prey availability. Chemical control can be recommended 24 hours after pheromone applications in small plots as a between-season strategy for the suppression of boll weevil adults.

scholarly journals RNAi-Mediated Suppression of Laccase2 Impairs Cuticle Tanning and Molting in the Cotton Boll Weevil (Anthonomus grandis)

2020 ◽  
Vol 11 ◽  
Author(s):  
Alexandre Augusto Pereira Firmino ◽  
Daniele Heloísa Pinheiro ◽  
Clidia Eduarda Moreira-Pinto ◽  
José Dijair Antonino ◽  
Leonardo Lima Pepino Macedo ◽  
...  
Keyword(s):  
Boll Weevil ◽  
Anthonomus Grandis ◽  
Cotton Boll ◽  
Cotton Boll Weevil

Site of pheromone biosynthesis and isolation of HMG-CoA reductase cDNA in the cotton boll weevil,Anthonomus grandis

2006 ◽  
Vol 62 (4) ◽  
pp. 153-163 ◽  
Author(s):  
A. Huma Taban ◽  
Jessica Fu ◽  
Jacob Blake ◽  
Ami Awano ◽  
Claus Tittiger ◽  
...  
Keyword(s):  
Boll Weevil ◽  
Pheromone Biosynthesis ◽  
Anthonomus Grandis ◽  
Cotton Boll ◽  
Hmg Coa Reductase ◽  
Cotton Boll Weevil ◽  
Coa Reductase

EFFECTS OF ANTENNECTOMY AND A JUVENILE HORMONE ANALOG ON PHEROMONE PRODUCTION IN THE BOLL WEEVIL (COLEOPTERA: CURCULIONIDAE)

1988 ◽  
Vol 23 (1) ◽  
pp. 52-58 ◽  
Author(s):  
J. C. Dickens ◽  
W. L. McGovern ◽  
G. Wiygul
Keyword(s):  
Juvenile Hormone ◽  
Aggregation Pheromone ◽  
Topical Application ◽  
Olfactory Receptors ◽  
Boll Weevil ◽  
Anthonomus Grandis ◽  
Pheromone Production ◽  
Juvenile Hormone Analog ◽  
Hormone Analog

Aggregation pheromone production by male boll weevils, Anthonomus grandis grandis Boheman can be stimulated by both antennectomy and topical application of a juvenile hormone analog (JHA, methoprene). Since JHA decreases sensitivity of antennal olfactory receptors, its effects on pheromone production may possibly be by either stimulating release of some blood-borne factor or decreasing antennal input.

Design of an Attract-and-Kill Device for the Boll Weevil (Coleoptera: Curculionidae)2

1990 ◽  
Vol 25 (4) ◽  
pp. 581-586 ◽  
Author(s):  
G. H. McKibben ◽  
J. W. Smith ◽  
W. L. McGovern
Keyword(s):  
Control Method ◽  
Field Tests ◽  
Boll Weevil ◽  
Cottonseed Oil ◽  
Anthonomus Grandis ◽  
Feeding Stimulants ◽  
Cotton Boll ◽  
Green Pigment ◽  
Attract And Kill ◽  
Crude Cottonseed Oil

Polyvinyl chloride (PVC) was used to formulate a mixture of grandlure, feeding stimulants, and a toxicant as a toxic bait for the cotton boll weevil, Anthonomus grandis (Boheman). Field tests with the PVC formulation revealed that certain aspects of boll weevil orientation dictated placement of the bait device on vertically oriented stakes of about 12 - 24 mm diameter. A stake coating was prepared which contained natural shellac as a binder, cyfluthrin, a green pigment, and crude cottonseed oil. This coating was applied to wooden stakes, with aluminum pans underneath to facilitate counting of dead boll weevils. Bait devices prepared in this manner appeared to be very effective in killing boll weevils. Their advantage over live traps is that they are less expensive and require no service once they are deployed. They have the potential for becoming an important control method for the boll weevil, particularly in the early and late season periods.

scholarly journals Selection of Bacillus thuringiensis strains toxic to cotton boll weevil ( Anthonomus grandis , Coleoptera: Curculionidae) larvae

2017 ◽  
Vol 49 (3) ◽  
pp. 264-272 ◽  
Author(s):  
Melisa P. Pérez ◽  
Diego H. Sauka ◽  
María I. Onco ◽  
Marcelo F. Berretta ◽  
Graciela B. Benintende
Keyword(s):  
Bacillus Thuringiensis ◽  
Boll Weevil ◽  
Anthonomus Grandis ◽  
Cotton Boll ◽  
Cotton Boll Weevil ◽  
Selection Of
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