Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The scale-insects of food and fodder crops in the Antilles and in French Guiana (Homoptera, Coccoidea).

Abstract

The cultivation and storage of yams (Dioscorea spp.) in Guadeloupe, Martinique and French Guiana are much hindered by attacks by scale insects, which not only damage the tubers directly but also favour the entry of a rot-producing Penicillium fungus through their feeding punctures. As a result of surveys carried out in these countries in 1968-69 and 1973, some 20 species of injurious scale insects and mealybugs are enumerated, divided into those on yam, other starchy plants (cassava (Manihot esculenta (utilissima)), taro (Colocasia spp.), sweet potato and breadfruit (Artocarpus spp.)), vegetables (tomato, pimento [Capsicum], egg-plant [Solanum melongena], Cajanus cajan (indicus), Inga sp., bean (Phaseolus vulgaris), cauliflower and celery) and Pangola grass (Digitaria decumbens). Coccus moestus De Lotto (on breadfruit), which is known on various plants in East Africa and Micronesia, is recorded for the first time in tropical America; Chorizococcus rostellum (Lobdell), which is known on Digitaria spp. in the United States, is recorded for the first time in Guadeloupe; Dysmicoccus bispinosus Beardsley, which is known in Jamaica and Mexico, is recorded both in Guadeloupe and on cassava for the first time; and D. brevipes (Ckll.), Pseudococcus sp., Geococcus coffeae Green and Rhizoecus sp. are recorded for the first time on yam, in Guadeloupe.