Record Details

Title:
Effect of learning on the oviposition preference of field-collected and laboratory-reared Chilo partellus (Lepidoptera: Crambidae) populations
Publication date:
2007
Summary:
Recent studies show that Vetiver grass, (Vetiveria zizanioides (L.) Nash), may have potential as a dead-end trap crop in an overall habitat management strategy for the spotted stem borer, ChilD partellllS (Swinhoe) (Lepidoptera: Crambidae). Vetiver grass is highly preferred for oviposition, in spite of the fact that larval survival is extremely low on this grass. The oviposition behaviour of female ChilD partellllS moths was investigated by determining the amount and size of egg batches allocated to maize and Vetiver plants and studying the effect of rearing conditions and oviposition experience on host plant selection. Two-choice preference tests were used to examine the effect of experience of maize (a suitable host plant) and Vetiver plants on the oviposition choice of C. parteUlis. For both field-collected and laboratory-reared moths, no si cant differences were found in the preference distributions between the experienced groups. It is concluded that females do not learn, i.e.' that they do not change their preference for Vetiver grass after having experienced oviposition on either maize or this grass, which supports the idea that trap cropping could have potential as a control method for C. partelIlis. Differences observed between field-collected and laboratory-reared moths in the amount and size of egg batches laid on maize and Vetiver grass indicate that data obtained from experiments with laboratory-reared insects should be treated with caution.
Call number:
E00382
Journal citation:
Linked resources:
Fulltext: e00382 - PDF
Contact information:
harvest@worldveg.org

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 Record created 2007-11-27, last modified 2019-06-17

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