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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Moth Photographers Group – Hypsipyla grandella –
Biochemical Systematics and Ecology September 12, ; Accepted: Development of Hypsipyla grandella Zeller Lepidoptera: The mahogany shoot borer: Honduras mahogany, or big-leaf mahogany S. Mahogany shoot borer, Hypsipyla grandella Hypsiplaegg. Encontramos que los machos y hembras realizan un comportamiento de aleteo corto y aleteo largo. West Indies mahogany, Swietenia mahagonifoliage and seed capsules.
Pyralidae in response to constant temperatures. Currently there is no control method that effectively reduces levels of infestation to an economically acceptable threshold.
A female may lay about eggs, but typically lays no more than a few eggs per tree Solomon Some meliaceous tree species that are native 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. The LTT was then used to calculate hypipyla thermal constant, which represents the physiological time required to complete development at each temperature.
Only a percentage of the growing shoots on a tree are attacked, the damage to the twigs is not conspicuous from a distance, and growth of branches during the summer conceals the damage.
Introduction The forest species of Meliaceae family, native to Tropical America, is largely explored due to the high commercial value of its timber. Because attacks ultimately result in hgpsipyla reduction in the number and length of straight, clear logs, mahogany shoot borers are a major pest of mahoganies, cedros, and other meliaceous timber trees in the tropics. West Indies mahogany, Swietenia mahagoniundergoing spring flush.
The hind wings are white to hyaline with dark colored margins. Mahogany shoot borers attack new shoots and are seldom seen attacking hardened-off shoots.
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You do not currently have access to this article. In Florida, mahogany shoot borer attack on seed capsules of West Indies mahogany is mostly limited to the period during garndella the capsules dehisce in spring, before and during the new shoot flush Howard and Gilblin-Davis Canadian Journal of Plant Science K thermal constanty development granddllat temperature and a LTT Wigglesworth Population increases in spring have been observed in some studies in the tropics at the beginning of the rainy season RooversBauer The current situation on shoot, fruit and collar borers of the Meliaceae.
Thus, the shoot borer is present in almost all regions where Khaya sp. Biology Back to Top The adult moths are nocturnal and live seven to eight days Holsten The biology and ecology of Hypsipyla shoot borers. Also, regression and correlation grandslla were performed to examine the relationships between temperature and the rates of development of immature stages and adult emergence.
This prevents the monoculture establishment of native Meliaceae.
Mahogany shoot borers also attack seed capsules of mahoganies and cedros. The forewings are gray to brown with shades of dull rust red on the lower portion of the wing. However, in this work we grandepla for the first time the H. Temperature clearly influenced mortality during development Fig. True mahoganies are perhaps the most important tropical timber trees in the world.
Hypsipyla grandella – Wikipedia
Mating Behavior of Hypsipyla grandella Hhpsipyla In Whitemore JL [ed. To purchase short term access, please sign in to your Oxford Academic account above. Wylie reviewed published information on chemical control of Hypsipyla spp. The predominant soil hypaipyla the Oxisol. There are grancella least 11 species of Cedrela Penningtonand the mahogany shoot borer is known to attack at least some of them in addition to Cedrela odorata Becker Silvicultural systems for plantation mahogany in Africa: Mean development time for each larval instar tended to decrease as temperature increased.
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.
Prospects for biological control of Hypsipyla spp. Wing veins are distinctively overlaid with black. Becker suggested that seed production is high enough to compensate for losses to the mahogany shoot borer.
Therefore, the objective of this research was to determine the response of H.