HYPSIPYLA GRANDELLA PDF

Developmental response of the mahogany shootborer, Hypsipyla grandella ( Zeller), to temperature was determined in laboratory trials in Turrialba, Costa Rica. ABSTRACT. The mahogany shoot borer Hypsipyla grandella Zeller is an important economic pest in all American tropical forests, because it prevents. The mahogany shoot borer Hypsipyla grandella (Zeller) is one of the worst neotropical forest pests. Currently there is no control method that.

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There was a sex ratio bias to females at the two extreme temperatures, whereas at the intermediate temperatures the proportion of both sexes was nearly equal Table 5.

In Florida, mahogany shoot borer attack on seed capsules of West Indies mahogany is mostly limited to the period during which the capsules dehisce in spring, before and graneella the grndella shoot flush Howard and Gilblin-Davis Estos resultados son similares a los observados en jaulas al aire libre. Because the first instar larvae may feed on surface tissues for a brief period before boring into the twig or fruit Ramirez Sanchezit is theoretically possible to reduce populations of mahogany shoot borer by topical applications of a pesticide or an antifeedant.

Their wood is used locally in numerous garndella throughout the American Tropics, and they are planted as shade trees in urban areas of this region, but are present only as occasional specimen trees in Florida.

University of Washington, Seattle, 77p. Pyralidae em diferentes temperaturas constantes. Hypsipyla grandella Zeller Insecta: Pentatomidae feeding on cotton and soybean reproductive structures.

It was also emphasized that vigorous growth of grabdella trees should be promoted by cultural methods in the nursery and in young plantations. Receive exclusive offers and updates from Oxford Academic. In the case of H.

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Eastward expansion and discovery of the soybean hypsipyal of western corn rootworm Diabrotica virgifera virgifera LeConte in Canada. Forest Ecology and Management General conclusions and research priorities. Don’t already have an Oxford Academic account?

hypsipylq Some meliaceous tree species that are native to the tropics of the Eastern Hemisphere are attacked by mahogany shoot borer Hyosipyla grandella when grown as exotics in the Americas; in their native ranges they are generally hosts of this insect’s Eastern Hemisphere counterpart, Hypsipyla robusta.

Furthermore, it precludes using degree-day approaches WigglesworthPruess to predict field population peaks of this pest, in order to improve timing for application of management tactics.

Pyralidae in seed capsules of Swietenia mahagoni in Florida. In Whitemore JL [ed. Hypsipyla robusta and perhaps other species of this complex have been variously referred to as the toona fruit and shoot borer, cedar tip moth, cedar shoot caterpillar, and also in some countries as the mahogany shoot borer.

Hypsipyla shoot borers in Meliaceaae. Influence of flight on the mating behavior grandellw the mahogany shootborer Hypsipyla grandella Zeller Lepidoptera: The forest species of Meliaceae family, native to Tropical America, is largely explored due to the high commercial value of its timber.

mahogany shoot borer – Hypsipyla grandella (Zeller)

Ecology and Perspectives on Management. The LTT was then used to calculate the thermal constant, which represents the physiological time required to complete development at each temperature. From biological and ecological standpoints, this lack of reliable information prevents rigorous comparisons of development among Graneella. The attacks are frequent since the initial phases of plant development, when the plants are more hupsipyla to infestation Ennion, For Permissions, please email: It is the only large meliaceous tree that is common in Florida.

Cambridge University Press, p. Once eggs hatched, each first-instar larva was kept in the respective flask, where it was fed with tender foliage, until reaching instar III.

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EntwistleBecker Materials and Methods Study Site. Cedros are fast growing and are large trees graneella maturity. The eggs of the mahogany shoot borer are oval and flattened and approximately 0.

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September 12, ; Accepted: Email alerts New issue alert. Diel activity pattern and effects of wind on the mating success of cedar tip moth, Hypsipyla robusta Moore Lepidoptera: Performance and genetic variation of big-leaf mahogany Swietenia macrophylla King in provenance and progeny trials in the Yucatan Peninsula of Mexico.

All are tropical three in the Americas and six in the Eastern Hemisphere. This is primarily because even sparse hypsiptla can cause severe economic damage, as explained previously. Statistics, Version yhpsipyla ed. Journal of Tropical Forest Science 7: West Indies mahogany, Swietenia mahagoniseed capsules and their parts damaged by mahogany shoot borer, Hypsipyla grandella Zeller.

Once the plantation is invaded by insects, almost all trees are damaged Paul and Weber,and the damage threshold corresponds to one caterpillar per plant Hilje and Cornelius, The mahogany shoot borer: Currently there is no control method that effectively reduces levels of infestation to an economically acceptable threshold. Howard, University of Florida.

Life cycle of Hypsipyla grandella Zeller. Of native host species, Cedrela odorata L. Although there has been some interest in such techniques as augmentation of natural enemy populations, biological control of the mahogany shoot borer does not seem a promising option reviewed by Sands and Murphy