HYPSIPYLA GRANDELLA ZELLER PDF
Developmental response of the mahogany shootborer, Hypsipyla grandella ( Zeller), to temperature was determined in laboratory trials in Turrialba, Costa Rica. The mahogany shoot borer, Hypsipyla grandella,is one of the most of Female and Male Hypsipyla grandella (Zeller) to Swietenia macrophylla Essential Oils. J Chem Ecol. Sep;29(9) Electrophysiological responses of female and male Hypsipyla grandella (Zeller) to Swietenia macrophylla essential oils.
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Response to temperature was assessed by exposing H. Pyralidae em diferentes temperaturas constantes.
The eggs zelleg the mahogany shoot borer are oval and flattened and approximately 0. Larvae that bore in shoots produce a tunnel of several centimeters in length. Control of Hypsipyla spp.
Day-degree methods for pest management.
However, these experiments failed, because pairs of H. It is the only species of Hypsipyla in Florida, where it is a pest of West Indies mahogany Swietenia mahagoni Jacquina native tree that is frequently planted as an ornamental or shade tree hypsipylla southern Florida.
Hypsipyla grandella – Wikipedia
They attack a higher percentage of mahoganies grown in plantations than trees interspersed in natural forests, and this insect has been a major impediment to the establishment of mahogany plantations. In fact, repeated topical applications of azadirachtin neem seed extracthypxipyla insect antifeedant, to young mahogany trees during the principal period of mahogany shoot attack in Florida April-May reduced the incidence of damage Howardbut later htpsipyla similar experiment was inconclusive Howard, unpublished.
Population increases in spring have been observed in some studies in the tropics at the beginning of the uypsipyla season RooversBauer In southern Florida, where the flush of new growth of West Indies mahogany takes place from April to June Howard and Solismahogany shoot borers attack shoots from early spring to mid-summer, with pronounced peaks in May Howard Journal of Tropical Forest Science 7: Influence of flight on the mating behavior of the mahogany shootborer Hypsipyla grandella Zeller Lepidoptera: Nine additional species of Hypsipyla have hyppsipyla described.
Its ecology and management. The constant-temperature regimes in our study did not mimic the diurnal variation occurring in H. For determining development time, a cohort of fresh eggs less than 24h old was placed individually inside 30 ml glass flasks containing a disk of C.
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Research on both of these approaches is underway in Costa Rica. During the Colonial Period in the Caribbean Region, West Indies mahogany was extensively logged, after which the more extensively distributed Honduras mahogany on the mainland of the Americas became the major source of mahogany timber. The eggs are deposited zller the early morning hours on leaf scars, new shoots, leaf veins and fruits.
Larval development takes place typically through six range five to seven instars Entwistle Therefore, the objective of this research was to determine the response of H. RB, Hauxwell C eds. Aside from bioinsecticides, such as derivatives of neem Azadirachta indicaMeliaceae Mancebo et al.
Fasoranti showed that flight strongly influences mating and oviposition in H. The seasonal abundance and feeding damage of Hypsipyla grandella Lepidoptera: Two hundred fresh eggs less than 24h old were placed individually inside glass flasks, and exposed to seven constant temperatures 10, Howard and Meerow These values allowed calculation of the lower thermal threshold for each stage: Effect of mahogany shoot borer zelper growth of West Indies mahogany in Florida.
Research to identify genetic strains of these trees that are resistant or that can overcome shoot borer attack has progressed well Mayhew and NewtonWatt et al. Mahogany trees are susceptible to attack when they reach a height of 0.
The hollow shoot dies and buckles, and the leaves of this twig die. Participants of an international workshop on Hypsipyla shoot borers in concluded that the most promising management strategies of these pests involved identification and use of resistant genotypes and planting mahogany and cedro trees in mixed stands under an established canopy. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License.
West Indies mahogany, Swietenia mahagoniundergoing spring flush. Statistics, Version 5 ed. Two congeneric shootborer species, Hypsipyla grandella Zeller and H. Damage to mahogany shoot by mahogany shoot borer, Hypsipyla grandella Zeller. The insect’s most severe damage to trees occurs when a larva bores into and kills the terminal shoot.
Contributions to an integrated control programme of Hypsipyla grandella Zeller in Costa Rica. It is an important economic pest and has been the subject of concerted research efforts in several tropical countries.
The hind wings are white to hyaline with dark colored margins Figure 2.
mahogany shoot borer – Hypsipyla grandella (Zeller)
This is primarily because even sparse populations can cause severe economic damage, as explained previously. Pyralidae in a mahogany stand, in Turrialba, Costa Rica. How to cite this article. About grwndella species of insects have been identified as natural enemies of the mahogany shoot borer in the Americas Sands and Murphy Development rate was highest for eggs 1.