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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Thermal constants were estimated for each temperature Table 3and a general constant of degree-days was calculated. The mahogany shoot borer Hypsipyla grandella Zeller is one of the worst neotropical forest pests. The hind wings are white to hyaline with dark colored margins. Biochemical Systematics and Ecology The absence of air circulation in the chambers may limit flight behavior by H.
American moths of the subfamily Phycitinae.
Forest Ecology and Management The pupal stage takes place inside the hollowed twig or in the seed capsule, or in the leaf litter or soil under host trees. Materials and Methods Study Site. Canadian Journal of Plant Science Development of Hypsipyla grandella Zeller Lepidoptera: Biological activity of Ruta chalepensis Rutaceae and Sechium pittieri Cucurbitaceae extracts on Hypsipyla grandella Lepidoptera: The region is under the Cerrado domain and has plain relief.
The eggs are deposited during the early morning hours on leaf scars, new shoots, leaf veins and fruits. Intercropping Cedrela odorata with shrubby crop species to reduce infestation with Hypsipyla grandella and improve the quality of timber.
Silvicultural management of Hypsipyla spp.
Hypsipyla grandella – Wikipedia
Wylie reviewed published information on chemical control of Hypsipyla spp. Management Back to Top Research efforts to develop management methods have been much greater for mahogany shoot borer as a pest hypsipylw timber trees rather than as ornamental or shade trees LambGrijpmaNewton et al.
Taxonomy of Hypsipyla shootborers pests of mahogany red cedar an relatives. Performance and genetic grandela of big-leaf mahogany Swietenia macrophylla King in provenance and progeny trials in the Yucatan Peninsula of Mexico.
Biological activity of two neem Azadirachta indica A.
The predominant soil is the Oxisol. Using these values through the degree-day method WigglesworthPruessUniversity of CaliforniaTaveras et al. 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.
Agricultural and Forest Entomology 6: It is an important economic pest and has been the subject of concerted research efforts in several tropical countries.
In the field, the total development time including the larval, prepupal, and pupal stages, is usually one to two months and may be extended if the larvae undergo diapause Griffiths West Indies mahogany, Swietenia mahagonifoliage and seed capsules. This can be explained because high temperatures constrain insect development either by protein denaturing or because of accumulation of toxic wastes resulting from metabolic imbalances Chapman A mass of reddish-brown frass intertwined with the insect’s silk protrudes from the tunnel entrance.
These conclusions apply mostly to management of mahoganies and other meliaceous trees grown for timber. Guide to insect borers of North American broadleaf trees and shrubs. Progeny test analysis and population differentiation of mesoamerican mahogany Swietenia macrophylla.
This pest can hypaipyla the plants during the year and one larva per plant is enough to cause significant damage.
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Literature Cited Becker, V. Small trees whose terminal shoots are attacked repeatedly in successive years become extremely deformed. The mahogany shoot borer, Hypsipyla grandella Grandellaabores into the twigs and seed capsules of trees in the mahogany family Meliaceaeespecially mahogany species Swietenia spp. Comparative biology of Euschistus heros F.
Moth Photographers Group – Hypsipyla grandella –
Relationships between these variables and temperature were analyzed by means of ANOVA, regression and correlation procedures. Detailed observations on the mating behavior under controlled conditions, and what factors affect mating success, can contribute toward a better understanding of H. The hollow shoot dies and buckles, and the leaves of this twig die. Hosts Back to Top Species of several genera in the botanical family Meliaceae can serve as hosts of the mahogany shoot borer, including CarapaCedrelaGuareaKhayaSwieteniaand Trichilia EntwistleBecker The color of the eggs changes from white to red within the first 12 hours after oviposition.
Eggs were inspected uypsipyla 24h, grsndella order to determine hatching rates and development time at each constant temperature. West Indies mahogany, Swietenia mahagoniseed capsules and hypsipjla parts damaged by mahogany shoot borer, Hypsipyla grandella Zeller.
Very likely, the increase in the selection pressure, exerted by extensive resistant monocultures may contribute to the reduction of resistance of Khaya ivorensis by H. The seasonal abundance and feeding damage of Hypsipyla grandella Lepidoptera: