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

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.

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

1988 ◽  
Vol 23 (3) ◽  
pp. 223-228 ◽  
Author(s):  
M. R. Bell

A greenhouse test and two field tests were conducted to determine if a dye method of marking the fat body using Red Calco Dye could be used to identify adult tobacco budworms, Heliothis virescens (F.), and the bollworms, H. zea (Boddie), that had developed as larvae primarily on Geranium dissectum L. In a greenhouse trial, 73% of 22 adult tobacco budworms contained internal red dye after larvae fed on geranium plants treated with 10 ml of a dye mixture per plant (1% dye + 9% crude cottonseed oil + 90% water). No dye was detected in adults from larvae reared on untreated plants. One field was first infested with neonate tobacco budworms, and then treated with the dye mixture. Marked adults were caught in blacklight traps over a 13-day period. A second field of wild geranium, being ca. 11% of the total geranium in the immediate area, was treated with the dye mixture without artificial infestation. From the first to last marked adult caught in pheromone traps, 6.8% of the bollworms and 8.3% of the tobacco budworms contained internal red dye.


2006 ◽  
Vol 62 (4) ◽  
pp. 153-163 ◽  
Author(s):  
A. Huma Taban ◽  
Jessica Fu ◽  
Jacob Blake ◽  
Ami Awano ◽  
Claus Tittiger ◽  
...  

2017 ◽  
Vol 49 (3) ◽  
pp. 264-272 ◽  
Author(s):  
Melisa P. Pérez ◽  
Diego H. Sauka ◽  
María I. Onco ◽  
Marcelo F. Berretta ◽  
Graciela B. Benintende

2001 ◽  
Vol 58 (2) ◽  
pp. 229-234 ◽  
Author(s):  
Wedson Desidério Fernandes ◽  
Sérgio Luis de Carvalho ◽  
Mohamed Habib

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.


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