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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
02/04/2003 |
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Data da última atualização: |
29/07/2025 |
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Autoria: |
POPP, M. P.; WILKINSON, R. C.; JOKELA, E. J.; HARDING, R. B.; PHILLIPS, T. W. |
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Título: |
Effects of slash pine phloem nutrition on the reproductive performance of Ips calligraphus (Coleoptera: Scolytidae). |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Environmental Entomology, Lanham, v. 18, n. 5, p. 795-799, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
The density of eggs laid by females of Ips calligraphus was determined in the laboratory at 300C and LD 12:12 in thin phloem bolts cut from 25-year-old slash pine (Pinus elliottii var. elliottii) that had been fertilized at the time of planting with a combination of nitrogen, phosphorus and potassium, or phosphorus alone. Egg density was negatively correlated with female pronotal width (size) and positively correlated with the phloem phosphorus concentration. These 2 variables explained 64% of the variation in egg density. It is hypothesized that altering egg density in response to varying phloem nutrition represents a resource partitioning mechanism that reduces larval competition. These results also suggest that excessive phosphorus fertilization of slash pine could contribute to a build-up in the pest population without the added benefits of stand growth. |
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Palavras-Chave: |
Agricultural entomology; biology; Effects. |
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Thesagro: |
Pinus Elliottii. |
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Thesaurus Nal: |
conifers; fertilizers; forest pests; forest products; insect pests; Insecta; Ips calligraphus; nitrogen fertilizers; NPK fertilizers; pests; phosphorus fertilizers; potassium fertilizers; stored products; wood. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 01939naa a2200385 a 4500
001 1278693
005 2025-07-29
008 1989 bl uuuu u00u1 u #d
100 1 $aPOPP, M. P.
245 $aEffects of slash pine phloem nutrition on the reproductive performance of Ips calligraphus (Coleoptera$bScolytidae).
260 $c1989
520 $aThe density of eggs laid by females of Ips calligraphus was determined in the laboratory at 300C and LD 12:12 in thin phloem bolts cut from 25-year-old slash pine (Pinus elliottii var. elliottii) that had been fertilized at the time of planting with a combination of nitrogen, phosphorus and potassium, or phosphorus alone. Egg density was negatively correlated with female pronotal width (size) and positively correlated with the phloem phosphorus concentration. These 2 variables explained 64% of the variation in egg density. It is hypothesized that altering egg density in response to varying phloem nutrition represents a resource partitioning mechanism that reduces larval competition. These results also suggest that excessive phosphorus fertilization of slash pine could contribute to a build-up in the pest population without the added benefits of stand growth.
650 $aconifers
650 $afertilizers
650 $aforest pests
650 $aforest products
650 $ainsect pests
650 $aInsecta
650 $aIps calligraphus
650 $anitrogen fertilizers
650 $aNPK fertilizers
650 $apests
650 $aphosphorus fertilizers
650 $apotassium fertilizers
650 $astored products
650 $awood
650 $aPinus Elliottii
653 $aAgricultural entomology
653 $abiology
653 $aEffects
700 1 $aWILKINSON, R. C.
700 1 $aJOKELA, E. J.
700 1 $aHARDING, R. B.
700 1 $aPHILLIPS, T. W.
773 $tEnvironmental Entomology, Lanham$gv. 18, n. 5, p. 795-799, 1989.
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Registro original: |
Embrapa Florestas (CNPF) |
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