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Oviposition preferences of the salvinia moth samea multiplicalis guenee lepidoptera pyralidae in relation to host plant quality and damage



Oviposition preferences of the salvinia moth samea multiplicalis guenee lepidoptera pyralidae in relation to host plant quality and damage



Journal of Applied Entomology 104(1): 73-78



Female Samea multiplicalis prefer to oviposit on Salvinia molesta plants of high nitrogen content. Correspondingly, survival of first instar larvae is higher on plants with higher nitrogen content. When plants are low in nitrogen, the moth prefers to oviposit on plants grown in the sun to those grown in the shade. Ovipositing females also prefer undamaged plants to plants which have been damaged either by late-larval instars of S. multiplicalis or adults and larvae of the weevil Cyrtobagous salviniae. Few first instar larvae of S. multiplicalis survive on plants damaged by larger conspecific larvae but larval survival is enhanced on plants damaged by C. salviniae.

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Accession: 006051788

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