1992
DOI: 10.1016/0022-474x(92)90026-m
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No oviposition plasticity in Sitophilus oryzae (L.) (Coleoptera: Curculionidae)

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Cited by 6 publications
(5 citation statements)
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“…This procedure simulates culture conditions in which the culture interval is 8 weeks, taking into consideration that mating in S. zeamais does not occur before weevils are 3 d old (Walgenbach and Burkholder, 1987). There was little possibility of third generation adults emerging since the minimum time needed for development is 28 d (Povey and Sibly, 1992). The weevils emerging from each jar were counted to give a measure of productivity.…”
Section: Progeny Productionmentioning
confidence: 99%
“…This procedure simulates culture conditions in which the culture interval is 8 weeks, taking into consideration that mating in S. zeamais does not occur before weevils are 3 d old (Walgenbach and Burkholder, 1987). There was little possibility of third generation adults emerging since the minimum time needed for development is 28 d (Povey and Sibly, 1992). The weevils emerging from each jar were counted to give a measure of productivity.…”
Section: Progeny Productionmentioning
confidence: 99%
“…1). The low numbers of S. zeamais was due to the fact that after the initial infestation a minimum of 28 days are needed for eggs laid to develop into adults (Povey and Silby, 1992). Subsequently, relatively larger numbers were recorded for all the portions, with the middle portion recording the largest population increase at the end of the storage period whilst the bottom portion recorded the least number of weevils (Table 1).…”
Section: Results and Discussion Number Of Weevilsmentioning
confidence: 99%
“…The weevils thus Levels of infestation on three different portions of the maize cob... 23 moved away from the tip to other portions of the cob. The problems associated with the successful control of this pest are compounded by the relatively short life cycle of the pest (Povey and Silby, 1992). Infestation of maize by weevils is not restricted to the field, but storage facilities not protected from insect pest attack can also be a source of infestation.…”
Section: Results and Discussion Number Of Weevilsmentioning
confidence: 99%
“…Alors que les pontes multiples ont longtemps été considérées comme un comportement inadapté (Holloway 1984;Povey et Sibly 1992;Smith et Lessells 1985), ce n'est que récemment que la valeur adaptative de ce comportement a été reconnue (Parker et Courtney 1984;van Alphen et Visser 1990). Selon ces auteurs, les pontes multiples sont favorisées lorsque les bénéfices en terme de «fitness» liés à l'addition d'un oeuf sont profitables uniquement à ce dernier oeuf.…”
Section: Discussionunclassified