. Bulletin of the Department of Agriculture. Agriculture; Agriculture. S^W<&mTU 1 BULLETIN No. 914 Contribution from the Bureau of Entomology L. O. HOWARD, Chief. Washington, D. C. PROFESSIONAL PAPER December 9, 1920 THE RED-BANDED By F. H. Chittenden, Entomologist in Charge, Truck Crop Insect Investigations. CONTENTS. Introduction . 1 Descriptive 2 Distribution 4 Injuries and occurrences _ 5 Biologic notes 7 History of the species 8 Page Pood plants 10 Natural enemies 10 Control 11 Summary 11 Literature cited 13 INTRODUCTION. A small greenish caterpillar, about three
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. S^W<&mTU 1 BULLETIN No. 914 Contribution from the Bureau of Entomology L. O. HOWARD, Chief. Washington, D. C. PROFESSIONAL PAPER December 9, 1920 THE RED-BANDED By F. H. Chittenden, Entomologist in Charge, Truck Crop Insect Investigations. CONTENTS. Introduction . 1 Descriptive 2 Distribution 4 Injuries and occurrences _ 5 Biologic notes 7 History of the species 8 Page Pood plants 10 Natural enemies 10 Control 11 Summary 11 Literature cited 13 INTRODUCTION. A small greenish caterpillar, about three-fourths of an inch long when mature, and known as the red-bancled leaf-roller, attacks the foliage of beans, sweet potato, asparagus, strawberry, raspberry, and various other crops, and at times attracts considerable attention. Such was the case in October, 1919, when the species was abundant in and near the District of Columbia. October 9, 1919, the writer, in company with W. H. White, Bureau of Entomology, noted that the foliage of sweet potato at College Park, Md., showed considerable injury near the petioles or leaf- stems manifested by large, irregular, more or less elongate holes between the ribs. Some of these were made by a leaf-miner and had been cut out earlier in the season, but many were the work of this leaf-roller which had tied or joined the leaves in different manners. In some cases the leaves were folded between the midrib and the next rib, and the larva had gouged out a hole about twice this length and half the width. Where the leaves were joined the surface at one end was lined with silk. In many cases the larva joined the leaves near the middle of one side and cut out a similar hole, constructing its tent-like shelter at one end. A very considerable proportion of the top leaves had been attacked by this species and the leaf-miner, but at the time these observations were made there were many more parasites and parasitic cocoons pres- ent on the leaves than l
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