Male-produced aggregation pheromone of the maize weevil,Sitophilus zeamais, and interspecific attraction between threeSitophilus species

Walgenbach, Catherine A.; Phillips, Joel K.; Faustini, D. L.; Burkholder, Wendell E.

doi:10.1007/bf00987808

Cited by 55 publications

(29 citation statements)

References 9 publications

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“…The pheromone biology also demonstrates strong correlations between the rice and maize weevils (Walgenbach et al, 1983). The main component of the aggregation attractants -"sitophinone" -produced by male rice and maize weevils has demonstrated interspecific effectivity in the laboratory, where the female granary weevil also reacted positively to the male rice or maize weevils, while the male granary weevil differentiated between the male rice and maize weevils, only reacting to the latter.…”

Section: Annotations On the Phylogenesis Of Sitophilusmentioning

confidence: 99%

An attempt to reconstruct the natural and cultural history of the granary weevil, Sitophilus granarius (Coleoptera: Curculionidae)

Plarre¹

2010

Eur. J. Entomol.

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Abstract. It is generally accepted that stored grain insects are food opportunists and, when originally made the transition to manmade storage facilities, came from natural reservoirs like bird or rodent nests. This may not be true for Sitophilus granarius. Among all stored-product insects, the granary weevil S. granarius is the only species never recorded outside of storage facilities. Anatomical, physiological, and behavioural aspects of recent and hypothetical ancestral species in the genus Sitophilus are presented and discussed in terms of adaptation to the anthropogenic storage of grain. Full development inside the host kernel, endosymbioses with bacteria, and the reduction in flight activity to prevent water loss in a dry environment can be regarded as pre-adaptations for the evolution of a full synanthropic grain pest of cosmopolitan distribution. Faunistic, archaeological, and historical evidences of the pest's origin and spread in conjunction with early agriculture are reviewed to support a hypothesis of a co-evolutionary event with the dawn of Neolithic agriculture.

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Section: Annotations On the Phylogenesis Of Sitophilusmentioning

confidence: 99%

An attempt to reconstruct the natural and cultural history of the granary weevil, Sitophilus granarius (Coleoptera: Curculionidae)

Plarre¹

2010

Eur. J. Entomol.

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“…Intact whole grains of uniform size were chosen for the experiment and equilibrated in a constant temperature and humidity (CTH) room at 301C and 70% r.h. All of the experiments were carried out in the same CTH room in darkness. Weevils used were obtained from laboratory stocks, and the culturing techniques used have been described by Walgenbach et al (1983). Dimorphic rostral characteristics (Halstead, 1963) were used to separate the sexes.…”

Section: Insects and Substratementioning

confidence: 99%

The impact of grain quantity on the biology of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae): oviposition, distribution of eggs, adult emergence, body weight and sex ratio

Danho

Gaspar

Haubruge

2002

Journal of Stored Products Research

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Studies were conducted to observe the effect of grain quantity on the oviposition, distribution of eggs, adult emergence, adult body weight and sex ratio of Sitophilus zeamais, an important pest of maize. Three quantities of maize grains (200, 400 and 800 grains/glass jar of 1 l) were used under laboratory conditions (301C and 70% r.h.). Twenty five male/female pairs of maize weevil were introduced into each glass jar for 12 d. The greatest and lowest number of eggs was laid on batches of 800 and 200 grain kernels, respectively. The total number of grains attacked followed a similar trend. The aggregation of eggs expressed as a ratio of the variance to mean increased as the amount of maize grains was increased. The aggregation parameter k ranged from 2.35 on 200 grains to 4.49 on 800 grains. On average, a significantly higher proportion of grains were infested (90%) when less grain was present. Emergence of adult weevils was, however, maximal (472 individuals/glass jar) when the grain quantity was highest. The mean weight of the emerged adults was not significantly influenced by grain quantity, but female weevils were heavier than males (mean weight 3.16 vs. 3.05 mg) irrespective of maize quantity and eggs laid. Sex ratio (males/100 females) of emerged adults did not differ among treatments. The importance of grain quantity, and of oviposition, in internally feeding granivores and the possibility that there is an adaptive reproductive strategy are discussed. r 2002 Elsevier Science Ltd. All rights reserved.

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“…This could be attributed to the host-seeking behaviour of Sitophilus spp. ; adults move actively at random until they detect a spot suitable for infestation (Surtees, 1964;Plarre, 1996), then an aggregation pheromone is released that attracts other colonizers of the same species (Walgenbach et al, 1983;Walgenbach & Burkholder, 1986;Landolt & Phillips, 1997). Seeds damaged by other rice weevils and the presence of saliva or frass, may modify the emission of volatiles from specific parts of the seed, such as the germ or the kernel endosperm, which are highly attractive or act as an arrestant for adult S. oryzae (Trematerra et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Responses of Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae) to traps baited with pheromones and food volatiles

Athanassiou¹,

Kavallieratos²,

Trematerra³

2006

Eur. J. Entomol.

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Abstract. The behavioural responses of two species of stored-product beetles, Sitophilus oryzae (L.) and Tribolium confusum Jacquelin du Val, to certain stimuli were studied in laboratory choice tests. The results of these experiments indicated that, with one species present, S. oryzae and T. confusum adults were equally attracted to traps baited with the aggregation pheromone of that species and to traps baited with both pheromones. In contrast, when both species were present, neither S. oryzae nor T. confusum showed specific behavioural trend towards a stimulus. Traps baited with 1 g of a mixture of plant extracts were significantly more attractive for both species than unbaited traps, but this response was highly influenced by the number of individuals of each species released. Traps baited with filter papers that were previously contaminated by live adults of both species were particularly attractive for S. oryzae, but not for T. confusum. Traps that contained 10 seeds damaged by S. oryzae were significantly more attractive than traps containing an oil lure or control traps for S. oryzae, but not for T. confusum. The addition of oil to the seeds did not affect the attractiveness of the trap for S. oryzae. Traps that contained 20 live S. oryzae adults were significantly more attractive than traps containing 20 dead S. oryzae adults or control traps. No significant differences were noted between traps containing 20 dead S. oryzae adults and control traps. The presence of S. oryzae adults in traps did not affect the response of T. confusum.

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Male-produced aggregation pheromone of the maize weevil,Sitophilus zeamais, and interspecific attraction between threeSitophilus species

Cited by 55 publications

References 9 publications

An attempt to reconstruct the natural and cultural history of the granary weevil, Sitophilus granarius (Coleoptera: Curculionidae)

An attempt to reconstruct the natural and cultural history of the granary weevil, Sitophilus granarius (Coleoptera: Curculionidae)

The impact of grain quantity on the biology of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae): oviposition, distribution of eggs, adult emergence, body weight and sex ratio

Responses of Sitophilus oryzae (Coleoptera: Curculionidae) and Tribolium confusum (Coleoptera: Tenebrionidae) to traps baited with pheromones and food volatiles

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