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Studies on the shootborer Hypsipyla grandella (Zeller) (Lep., Pyralidae), 27: Biological and chemical screening for the basis of resistance of Toona ciliata M.J. Roem. var. austral... by Grijpma, P., Roberts, S.C.

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Desenvolvimento da fase pupal do Chalcodermus bimaculatus Fiedler, em alguns tipos de solos com diferentes teores de umidae by Magalhaes, J.A., Grijpma, P.

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Controle do gorgulho do fejao-de-corda, Callosobruchus maculatus (Fabr. 1792) (Col. Bruchidae), com brometo de metila by Magalhaes, J.A., Grijpma, P.

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Studies on the shootborer, Hypsipyla grandella (Zeller) (Lepidoptera: Pyralidae). XVIII. Records of two parasities new to Costa Rica by Grijpma, P.

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Studies on the shootborer Hypsipyla grandella (Zeller) (Lepidoptera Pyralidae). V. Observations on a rearing technique and on host selection behavior of adults in captivity by Grijpma, P.

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Studies on the shootborer Hypsipyla grandella (Zeller) (Lepidoptera Pyralidae). I. Host selection behavior by Grijpma, P., Gara, R.I.

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Studies on the shootborer Hypsipyla grandella (Zeller) (Lepidoptera Pyralidae). II. Host preference of the larva by Grijpma, P., Gara, R.I.

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Eucalyptus deglupta Bl. una especie forestal prometedora para los trópicos húmedos de América Latina by Grijpma, P.

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Toona spp., posibles alternativas para el problema del barrenador hypsipyla grandella de las meliaceae en América Latina by Grijpma, P., Ramalho, R.

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Germinación y supervivencia al repique de Anthocephalus cadamba Miq. by González Rivadeneyra, M.C., Grijpma, P.

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Germinación y supervivencia al repique de Anthocephalus cadamba Miq. (Kadam) by González Rivadeneyra, M.C., Instituto Interamericano de Ciencias Agrícolas (IICA)

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