Aspidiotus destructor, the coconut scale, is a species of armored scale insect in the family Diaspididae. References. ^ “Aspidiotus destructor Species. Coconut scale, Aspidiotus destructor Signoret, has an extremely broad host range, feeding on over 60 different families of plants. As a pest of. On leaves, A. destructor causes yellow spots to develop beneath the insects, due to the toxicity of saliva injected in to plant tissues while feeding. Entire leaves.
|Published (Last):||3 September 2006|
|PDF File Size:||16.72 Mb|
|ePub File Size:||13.1 Mb|
|Price:||Free* [*Free Regsitration Required]|
Davidson and Miller recorded it from hosts belonging to 75 genera in 44 plant families, but its host range is probably wider than this. Coconut scale resembles other armored scales in that the body is protected by a waxy cover.
Prevention and Control Top of page Introduction A. Mature mango plant infested with coconut scale, Aspidiotus destructor Signoret, in Pakistan.
Upper side of mango leaf infested with coconut scale, Aspidiotus destructor Signoret, showing chlorosis. Taxonomic Tree Top of page Asipdiotus For further information, we recommend you visit the following resources: Scale insects from greenhouses in France: Aphelinidae are the most common parasitoid species controlling the coconut scale populations in Fiji and the Destructog DeBachWatson et al. Aspidiotus destructor Signoret, an armored scale pest new to the Hawaiian Islands.
Studies on Aspidiotus destructor Sign.
Diaspididae of Taiwan based on material collected in connection with the Japan – U. Biology and Destrjctor Top of page A.
Cultural Control During the early stages of an outbreak of A. New records of parasites and predators of important insect pests of mango. However, natural controls appear to keep A. Indian Coconut Journal Cochin23 9: CIE, ; Foldi, They group together, secrete a filamentous waxy material and become immobile.
Females remain pale yellow, circular and somewhat transparent in the second as;idiotus, which lasts for days. Developments in the control of coconut scale, Aspidiotus destructor Sign.
Aspidiotus destructor (coconut scale)
Taiwan Agricultural Research Institute, Entire leaves may turn yellow to brown and fall, and fruits may be discoloured, stunted or fall prematurely. The coccinellid Cryptognatha nodiceps is a particularly effective predator Rosen, In more northern regions, it is found only in greenhouses or other enclosed areas Danzig and Pellizzari Coconut scale is known to be dispersed by birds, bats and insects as well as wind Taylor Encyrtidae was reported as an important parasitoid in mango Ahamad and Ghani, In the Philippines, on coconut, the egg stage lasted for 8 days in both sexes Tabibullah and Gabriel, In Pakistan, Pakencyyrtus pakistanensis Ahmad Hymenoptera: One or more of the features that are needed to show you the maps functionality are not available in the web browser that you are using.
Continuing to use www. In Japan on tea plants, A. Diapididae of the Conterminous United States.
British Museum Natural History. New contribution to the study of scale insects from Brazilian Amazonia Homoptera: A new entomogenous species of Phoma. NHM, ; Takagi, ; Wong et al. Crawler stages are generally the most susceptible to insecticides.
Bodies of slide-mounted specimens are 0. Please consider upgrading your browser to the latest version or installing a new browser. Coconut scale was first reported in Hawaii in on papaya, banana and apple and remains a pest of concern in that region Kessing and Mau Larva and Pupa Females have two nymphal stages, while males have two feeding nymphal stages, followed by non-feeding pre-pupal and pupal stages four immature stages altogether Tabibullah and Gabriel, It occasionally causes severe damage to guava in India Hayes, However, continuous unchecked attacks of A.
Biology of coconut scale, Aspidiotus destructor Signoret Hemiptera: Distribution Top of page A. In Biological Control by Natural Enemies.
Coccoidea of Easter Island Homoptera. Mariau and Julia report that predation by coccinellids was usually sufficient to maintain scale populations below the economic level in coconuts in Ivory Coast. CIE, ; Williams and Watson, Anterior deestructor not to scale. Host-Plant Resistance Differences in size and mortality rates were observed on different coconut cultivars by Tabibullah and Aspidiltus Notes on Taxonomy and Nomenclature Top of page Aspidiotus destructor was first described by Signoret in