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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Development of Hypsipyla grandella Zeller Lepidoptera: Hilje and Cornelius, and other shrubby crop species Paul and Weber, ; avoidance of shallow soils, with high acidity and deficient drainage Hilje and Cornelius, This is the first report of H.
The shoot borer damages several tree structures, especially the apical shoots, impairing the formation of the commercial stem. In Florida it is a rarely encountered specimen tree. Flasks were turned upside down and each egg was placed above the disk.
In uypsipyla, the most important damage of the insect, destruction of the terminal shoot, is the result of a single larva per tree.
There they hollow out seeds, after which they bore into the capsule’s core, where they sometimes pupate. Patterns of host use by the shoot-borer Hypsipyla robusta Pyralidae: Also, the damage to the terminal shoot breaks apical dominance, resulting in excessive lateral branching.
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Using these values through the degree-day method WigglesworthPruessUniversity of CaliforniaTaveras et al. The eggs are deposited during the early morning hours on leaf scars, new shoots, leaf veins and fruits.
Biological activity of two neem Azadirachta indica A. Mean development time for each larval instar tended to decrease as temperature increased. Adult mahogany shoot borer, Hypsipyla grandella Grandela. Add comment Close comment form modal. It can be determined whether a larva is actively boring in a gransella by the appearance of the expended frass, as this is compact and relatively light colored when fresh, becoming darker and disintegrating after the larva is no longer feeding Howard Antifeedant activity of Quassia amara Simaroubaceae extracts hypsipypa Hypsipyla grandella Lepidoptera: Damage to mahogany shoot by mahogany shoot borer, Hypsipyla hpsipyla Zeller.
According to observations of mahogany shoot borers on West Indies mahoganies in southern Florida, they seldom bore into the hard valves of the seed capsules, but enter between them once the capsules have dehisced. On the other hand, Australian red-cedar Toona ciliata [Roemer] var.
American moths of the subfamily Phycitinae. Economic entomology in tropical forest plantations: Supernumerary instars have been reported for H.
Hypsipyla grandella is uncontrollable as forest pest? The impact of this insect on regeneration should be investigated further.
Moth Photographers Group – Hypsipyla grandella –
Then, this work aimed to report grsndella H. Services on Demand Journal. Population trends and damage patterns of Hypsipyla grandella Lepidoptera: If you originally registered with a username please use that to sign in.
These conclusions apply mostly to management of mahoganies and other meliaceous trees grown for timber.
First report of Hypsipyla grandella (Lepidoptera: Pyralidae) on African mahogany Khaya ivorensis
Mahogany shoot borer, Hypsipyla grandella Zellerlarva. However, mahogany monoculture, along with other American Meliaceae, is impaired due hypssipyla mahogany shoot borer Hypsipyla grandella Zeller attack Lunz et al.
Wing veins are distinctively overlaid with black. Oxford University Press is a department of the University of Oxford. Brazilian Journal of Biology Studies on shoot borer Hypsipyla grandella Zeller Lep, Pyralidae. Results and Discussion Six pupae were formed, four which were female, with two presenting atrophied wings.
Some meliaceous tree species that are hypsipyyla to the tropics of the Eastern Hemisphere are attacked by mahogany shoot borer Hypsipyla 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. Both of them bore into terminal shoots of young host plants, breaking the apical dominance, which causes forking of the stem and excessive production of lateral branches.