. Cooperative economic insect report. Insect pests Control United States Periodicals. - 1065 - STATUS OF SOME IMPORTANT INSECTS IN THE UNITED STATES RICE STINK BUG (Oebalus pugnax pugnax (Fabricius)) Economic Importance: Present in every rice-producing state except California, the rice stink bug annually causes a reduction in yield and lowers the quality of some of the rice grown in Arkansas, Louisiana and Texas. Both nymphs and adults injure rice. When the rice is in the milk stage, the insect may suck out the entire contents, leaving an empty seedcoat. Grains of rice in the dough stage that
. Cooperative economic insect report. Insect pests Control United States Periodicals. - 1065 - STATUS OF SOME IMPORTANT INSECTS IN THE UNITED STATES RICE STINK BUG (Oebalus pugnax pugnax (Fabricius)) Economic Importance: Present in every rice-producing state except California, the rice stink bug annually causes a reduction in yield and lowers the quality of some of the rice grown in Arkansas, Louisiana and Texas. Both nymphs and adults injure rice. When the rice is in the milk stage, the insect may suck out the entire contents, leaving an empty seedcoat. Grains of rice in the dough stage that have only part of the contents removed are known in the trade as pecky rice. Other insects and disease organisms contribute to this condition. Rice grains may be discolored due to the presence of molds following bug injury. Such kernels are often broken in milling, which lowers the value to both the grower and miller. Distribution: Recorded in the British West Indies, Cuba, Dominican Republic, Mexico, Puerto Rico, Virgin Islands and the United States (see map). Hosts: The most important economic host is rice, but injury to other grains such as oat, wheat and sorghum has been reported. Rice stink bug has been reported on native grasses and many unrelated plants around rice fields. DISTRIBUTION OF RICE STINK BUG (Oebalus pugnax pugnax (Fabricius)). Life History and Habits: In the rice-growing areas, this subspecies overwinters as a mature bug. Hibernating quarters are as varied as opportunities exist; bugs may be found among any trash or organic matter on the ground. The bugs leave their winter quarters in late April" or early May, depending on weather conditions and begin feeding on a large variety of native grasses, preferably those producin seed at the time. When rice begins to head, large numbers of the pest attack the rice and insert their feeding stylets through the hulls, sucking the inner parts. Please note that these images are extracted from scanned page images tha
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