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.
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Scale Insects of Japan in Colours. Tropical Pest Management, 37 4: Diapididae of the Conterminous United States.
Diaspididae and its parasites, Asoidiotus melinus Debach Hymenoptera: The toxicity of insecticides to parasitoids and other beneficial insects should be considered before starting a spray program for scale insects. Checklist of the Armored Scales Homoptera: NHM, ; Takagi, ; Wong et al. Guidebook to scale insects of Taiwan. Underside of mango leaf infested with coconut scale, Aspidiotus destructor Signoret.
The biological control of the transparent coconut scale Temnaspidiotus destructor Signoret in the New Hebrides Homoptera, Diaspididae. CIE, ; Fernandes, The life cycle of A. Rhyzobius lophanthae effectively controlled A. Checklist of the Armored Scales Homoptera: Transport and the spread of crop pests in tropical Polynesia. Insect growth regulators may be effective, provided they are applied when the immature stages are present.
Aspidiotus destructor – Wikipedia
Coconut scale resembles other armored scales in that the body is protected by a waxy cover. Insect pests of economic significance affecting major crops of the countries in Asia and the Pacific region. Aphytis melanusa parasitic wasp, ovipositing on an armored scale.
Continuing to use www. Over 40 species of parasitoids and predators, and several fungal pathogens, are known to attack coconut scale Ben-Dov et al.
Tauili’ ili P; Vargo AM, Positive identification of coconut scales requires that adult females be slide mounted and the diagnostic characters observed at high magnification.
Entire leaves may turn yellow to brown and fall, and fruits may be discoloured, stunted or fall prematurely. Bionomics of coconut scale – a main pest insect on Actinidia and its control.
In extreme cases, the leaves dry out, entire fronds drop off and the crown dies. Bulletin of Entomological Research Natural enemies of A. The coccinellid Cryptognatha nodiceps is a particularly effective predator Rosen, 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, Damage to coconut palms by Azteca sp.
In extreme cases, the leaves dry up, entire fronds drop off, the crown dies and the whole crop is lost. Coconut scale, Aspidiotus destructor Signoret Hemiptera: Phytosanitary Measures Dharmaraju and Laird describe the transport of A.
Coconut is its favourite host; the undersurface of the leaves is mainly attacked, but frond stalks, flower clusters and young fruit can also be affected.