Further studies on a pyrethrum-resistant strain of the granary weevil,Sitophilus granarius (L.)

1963 ◽  
Vol 14 (9) ◽  
pp. 655-663 ◽  
Author(s):  
C. J. Lloyd ◽  
E. A. Parkin
Keyword(s):  
Resistant Strain ◽  
Sitophilus Granarius ◽  
Granary Weevil

Granary Weevil, Sitophilus granarius (Linnaeus) (Coleoptera: Curculionidae)

2008 ◽  
pp. 1653-1653
Author(s):  
Stewart B. Peck ◽  
Carol C. Mapes ◽  
Netta Dorchin ◽  
John B. Heppner ◽  
Eileen A. Buss ◽  
...  
Keyword(s):  
Sitophilus Granarius ◽  
Granary Weevil

scholarly journals Contributions to the Knowledge of Morphology of the Granary Weevil (Sitophilus Granarius L.), Major Pest of the Stored Cereals

1970 ◽  
Vol 66 (1) ◽  
Author(s):  
Adrian DINUŢĂ ◽  
Horia BUNESCU ◽  
Ilonka BODIŞ
Keyword(s):  
Sexual Dimorphism ◽  
Scientific Literature ◽  
Sitophilus Granarius ◽  
Granary Weevil ◽  
Complex Study ◽  
Sexual Pheromones ◽  
The World ◽  
Major Pest

To solve the multiple practical aspects raised by the achieving of cereals stocks protection (especially wheat and corn) against granary weevil Sitophilus granarius L., the research aimed a complex study on the sexual dimorphism at this species, aspect which help to prevent the weevils damages using unpollutant methods (with the aid of sexual pheromones, ovogenesis inhibitors, etc.). Due to the summarily data in the scientific literature of the world refering to the sexual dimorphism of the species, a detailed study was made within the Entomology Laboratory at the Faculty of Agriculture of USAMV Cluj-Napoca and at the Center of Electronical Microscopy of Babeş-Bolyai University in Cluj-Napoca (Romania), during 2005-2009

scholarly journals The RAPD Analysis of Genetic Variability in the Granary Weevil (Sitophilus Granarius L.) Populations

2008 ◽  
Vol 48 (4) ◽  
Author(s):  
Katarzyna Nowaczyk ◽  
Aleksandra Obrępalska-Stęplowska ◽  
Magdalena Gawlak ◽  
Paweł Olejarski ◽  
Jan Nawrot
Keyword(s):  
Genetic Variability ◽  
Rapd Analysis ◽  
Sitophilus Granarius ◽  
Granary Weevil

GROWTH AND DEVELOPMENT OF LARVAE OF THE GRANARY WEEVIL, SITOPHILUS GRANARIUS (COLEOPTERA: CURCULIONIDAE), ON NATURAL AND MERIDIC DIETS

1973 ◽  
Vol 105 (2) ◽  
pp. 249-256 ◽  
Author(s):  
J. E. Baker ◽  
J. M. Mabie
Keyword(s):  
Wheat Flour ◽  
Growth Rates ◽  
Adult Stage ◽  
Larval Growth ◽  
Pupal Stage ◽  
Sitophilus Granarius ◽  
Granary Weevil ◽  
Whole Wheat Flour ◽  
Whole Wheat ◽  
Meridic Diet

AbstractA procedure is described for obtaining free eggs and first-stage larvae of Sitophilus granarius (L.) and rearing the larvae to the adult stage on whole wheat, corn, and rice flours and on diet 2, a casein–starch-based meridic diet.Larval growth rates of males and females reared at 29 °C and 65% R.H. on whole wheat flour were comparable although males attained a higher maximum mean weight. Days to 50% adult emergence (eclosion) were 25.5 and 26.5 for females and males, respectively.Larval growth rates on whole wheat flour were comparable with those on whole corn flour but were better than the rates obtained on whole rice flour; however, growth on diet 2 was improved compared with that on whole wheat flour. The mean weights of 14-day-old larvae were 2.51 ±.40 mg and 1.25 ±.16 mg for those reared on diet 2 and wheat flour, respectively. Similarly, survival to the adult stage was slightly greater (79%) on diet 2 than on wheat (70%). On diet 1, a casein–glucose-based meridic diet, no larvae developed to the pupal stage.

Threshold temperature and heat unit requirements for the development of the granary weevil,Sitophilus granarius(L.)

2013 ◽  
Vol 47 (5) ◽  
pp. 555-563 ◽  
Author(s):  
Youssef M. Omar ◽  
Youssef A. Darwish ◽  
Rasmy E. Hassan ◽  
Mahmoud A. Mahmoud
Keyword(s):  
Threshold Temperature ◽  
Sitophilus Granarius ◽  
Heat Unit ◽  
Granary Weevil

Associative learning and memory duration in the parasitic wasp Lariophagus distinguendus

2006 ◽  
Vol 56 (2) ◽  
pp. 221-232 ◽  
Author(s):  
◽  
◽  
◽  
Keyword(s):  
Drosophila Melanogaster ◽  
Apis Mellifera ◽  
Associative Learning ◽  
Parasitic Wasp ◽  
Long Term Memory ◽  
Sitophilus Granarius ◽  
Granary Weevil ◽  
Term Memory ◽  
Lariophagus Distinguendus

AbstractLariophagus distinguendus (Pteromalidae, Hymenoptera) is an ectoparasitoid of larvae of the granary weevil Sitophilus granarius which develop inside grains. Female parasitoids were trained by keeping them for 1 h on grains infested with their hosts in the presence of the odorant furfurylheptanoate (FFH). In olfactometer experiments, these wasps afterwards preferred the odour field containing FFH as compared to control fields. Control experiments with; i) naïve wasps; ii) wasps exposed to infested grains only; iii) to FFH only; and iv) to infested grains first and FFH later, did not reveal any response to FFH. This indicates that the reaction to FFH is caused by associative learning due to host experience as unconditioned stimulus. Experiments on the durability of the learned response demonstrated that host experience in the presence of FFH induces a memory that can be observed for at least 144 h and most likely is equivalent to long-term memory in honey bee Apis mellifera and Drosophila melanogaster.

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