scholarly journals Evaluation of cultural control practices in the management of sweetpotato weevil (Cylas puncticollis) Boheman (Colepotera: Curculionidae)

2013 ◽  
pp. 44 ◽  
Author(s):  
A Mansaray ◽  
AJ Sundufu ◽  
K Yilla ◽  
SN Fomba
2013 ◽  
Vol 2 (1) ◽  
Author(s):  
Collins N Ehisianya ◽  
Donald A. Ukeh ◽  
Musa D. Isah ◽  
Ndowa E. S. Lale ◽  
Odidika C. Umeozor

2019 ◽  
Vol 110 ◽  
pp. 80-89 ◽  
Author(s):  
Katterinne Prentice ◽  
Guy Smagghe ◽  
Godelieve Gheysen ◽  
Olivier Christiaens

2009 ◽  
pp. 16-40
Author(s):  
Erlinda Vasquez ◽  
Dietmar Schmidt ◽  
Claus Peter Zebitz ◽  
Uwe Beifuss ◽  
Iris Klaiber ◽  
...  

Structure-activity and species specificity of the three synthetic sweetpotato weevil pheromones, (Z)-3-dodecenyl-(E)-2-butenoate of C. formicarius, dodecyl-(E)-2butenoate of C. brunneus and decyl-(E)-2-butenoate C. puncticollis and their corresponding precursor free alcohols and trans-crotonic acid were assayed on virgin males of the three weevil species in the laboratory using one-arm olfactometer with bidirectional airflow. Each of the sex pheromones was specific to its conspecific males, however, a pheromone of a particular species may become active to another species only at higher amount to elicit the same degree of response. The free alcohol precursor of the pheromone of C. formicarius, 3-Z- dodecen-1-ol, showed sexual stimulation on C. brunneus and C. puncticollis while dodecan-1-ol functioned as an aggregation compound. The decan-1-ol, precursor of C. puncticollis pheromone, had the lowest attraction index regardless of weevil species tested. Males of C. formicarius and C. brunneus exposed to trans-crotonic acid performed a complete series of mating behavior


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