The bean ladybird and its control:

The bean crop of the Southwest suffers severe injury from the bean ladybird, which sometimes ruins entire crops. It is restricted to beans for food and attacks all kinds. Both beetles and their larvæ devour all parts of the plant -- leaves, flowers and pods -- but the chief injury is to the foliage....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: Chittenden, F. H. (VerfasserIn)
Format: Buch
Sprache:English
Veröffentlicht: Washington, D.C. U.S. Dept. of Agriculture 1919
Schriftenreihe:Farmers' bulletin 1074
Schlagworte:
Zusammenfassung:The bean crop of the Southwest suffers severe injury from the bean ladybird, which sometimes ruins entire crops. It is restricted to beans for food and attacks all kinds. Both beetles and their larvæ devour all parts of the plant -- leaves, flowers and pods -- but the chief injury is to the foliage. The pest can be controlled in small areas by hand-picking the overwintered beetles and by brushing the larvæ or young from the plants during hot, dry weather. On a larger scale it may be controlled by spraying with arsenite of zinc, arsenate of lead, or arsenate of lime. Clean cultivation should be practiced and early and late planting."--[2]
Beschreibung:A serious enemy to the bean crop in the Southwest -- Distribution -- Habits -- Life history -- Natural control -- Artificial control -- Summary of control measures
Beschreibung:7 S. Ill.

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Fernleihe Bestellen Achtung: Nicht im THWS-Bestand!