. Cooperative economic insect report. Beneficial insects; Insect pests. 949 INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES CUCURBIT BEETLE* (Diabrotica speciosa Germ.) Economic Importance: Adults of this chrysomelid feed on foliage, flowers and fruits of many plants. The larvae are pests on roots, especially corn and peanuts. It is the most harmful species of Diabrotica in Argentina and causes much damage to watermelon, squash and tomatoes in Brazil. Young squash plantings and immature tomato fruits are severely damaged in the latter country. Pop- ulations are so heavy in some years in Paragu
. Cooperative economic insect report. Beneficial insects; Insect pests. 949 INSECTS NOT KNOWN TO OCCUR IN THE UNITED STATES CUCURBIT BEETLE* (Diabrotica speciosa Germ.) Economic Importance: Adults of this chrysomelid feed on foliage, flowers and fruits of many plants. The larvae are pests on roots, especially corn and peanuts. It is the most harmful species of Diabrotica in Argentina and causes much damage to watermelon, squash and tomatoes in Brazil. Young squash plantings and immature tomato fruits are severely damaged in the latter country. Pop- ulations are so heavy in some years in Paraguay that vegetable crops are almost completely destroyed. Severe injury also occurs on flowers of various ornamentals such as dahlias and chrysanthemums. D. speciosa has been intercepted at United States port of entry on several occasTonsT. Damage to Corn Seedling Damage to Melon Leaves and Flowers Distribution: Reported from Argentina, Brazil, Uruguay, Paraguay, Columbia, Bolovia, Costa Rica, Panama, Peru and 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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