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. Cooperative economic insect report. Beneficial insects; Insect pests. - 857 - INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES RICE HISPID (Dicladispa armigera (Olivier)) Economic Importance: This beetle is considered to be one of the most serious pests of rice in areas of India, Burma and East Pakistan. It sporadically causes serious losses to paddy rice, causing considerable damage to the leaves, particularly to rice that is standing in water. In southern Burma it is injurious practically every year from July to October and in East Pakistan from April to August. In July of 1925, 40 to 50 pe
. Cooperative economic insect report. Beneficial insects; Insect pests. - 857 - INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES RICE HISPID (Dicladispa armigera (Olivier)) Economic Importance: This beetle is considered to be one of the most serious pests of rice in areas of India, Burma and East Pakistan. It sporadically causes serious losses to paddy rice, causing considerable damage to the leaves, particularly to rice that is standing in water. In southern Burma it is injurious practically every year from July to October and in East Pakistan from April to August. In July of 1925, 40 to 50 percent of the rice crop was lost in the Wenchow district of Chekiang, China. The pest is most injurious to rice when it is in the seedbed and just after trans- planting in India and Pakistan. Large yellow spots, caused by larval mining, become evident on the leaves. The field becomes yellow, the plants wither and the leaves dry. Adult feeding causes additional leaf damage. Adults may become very abundant, at times, during the early spring when heavy migrations come from the waste- lands and surrounding Damage to Rice (la) Larval mines, (lb) Egg inserted in leaf tissue, (2) Mature larva, (3) Pupa, (4) Adult, (5) Adult leaf feeding. Distribution: Occurs throughout the southern and eastern part of India, Nepal, East Pakistan, Burma, Thailand. Indonesia, Indochina, Formosa and the coastal part of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Animal and Plant Health Service. Plant Protection and Quarantine Programs; United States. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Division. Hyattsville, MD. [etc. ] Plant Protection and Quarantine Programs Animal and Plant Health Service
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Keywords: ., bookcentury1900, booksubjectbeneficialinsects, booksubjectinsect