Technical Bulletin, Issue 77The Department, 1928 - Agriculture |
Other editions - View all
Common terms and phrases
Adults Eggs Larvae Adults Leaves Stems Amaranthus retroflexus Ambrosia elatior Artemisia Artemisia biennis badly infested barnyard grass bean beet Bidens Bidens frondosa burdock C. L. MARLATT celery Chenopodium chrysanthemum clover cocklebur cosmos cultivated dahlia dumps egg masses Eggs Larvae Pupae England European corn borer examined experiment field favorite host found infested found on plants frass frequency of infestation frequently infested garden gladiolus goldenrod grown larvae Hemp infested area infested corn infested plants injury insect knotweed larva feeding larvae leaf mangel migrating larvae millet moths Number Number number of borers number of plants Number Per cent occasionally occur oviposition petioles pigweed plant attacked plants infested plants plant Polygonum Pupae ragweed rarely infested rhubarb Rumex season seeds severely infested small grains Solidago sometimes sorghums species stages found Status as hosts sweet corn Swiss chard tansy teosinte tion tomato total number tunnel weeds Xanthium