File:The Sugar-Cane Insects of Hawaii (1911) (14775134931).jpg

Identifier: sugarcane00unit (find matches)
Title: The Sugar-Cane Insects of Hawaii
Year: 1911 (1910s)
Authors: United States.: Bureau of Entomology
Subjects: Sugarcane www.flickr.com/photos/internetarchivebookimages/tags/book...
Publisher: Washington, D.C. : U.S. Dept. of Agriculture, Bureau of Entomology
Contributing Library: University of Florida, George A. Smathers Libraries
Digitizing Sponsor: University of Florida, George A. Smathers Libraries with support from LYRASIS and the Sloan Foundation

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ally congregating whenpartly grown about the lower nodes of the stalk. The females arepractically inactive, remaining in a mass about one of the nodes orbeneath the leaves throughout their development and secreting aboutthemselves in these locations the characteristic white covering(Plate IV, fig. 3). The young males do not remain stationary onthe plant, but, after completing their development, spin a narrowwhite cocoon (Plate IV, fig. 4) within which they transform to adelicate winged adult. CONTROL. Selection of seed cane.—Since the common method of distributionis by the transportation of infested seed cane from plantation toplantation or from one part to another of the same plantation, careshould be exercised to select clean stalks and not those which areinfested, for seed cane. Burning of the trash.—The practice of burning the trash afterharvest is verv effective in destroying this insect, since those remain- Bui. 93, Bureau of Entomology, U. S. Dept. of Agriculture. Plate IV.
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The Sugar-Cane Mealy-Buq (Pseudococcus calceolaria). Fig. 1.—Adult mealy-bugs clustered about the base of young cane. Fig. 2.—Adult female,twice natural size. Fig. 3.—A single adult female* with white mealy-like covering.Fig. 4.—Cocoons of male mealy-bug. (Original.) OTHER SUGAR-CANE INSECTS IN HAWAII. 45 ing on the stalks are killed in the process of milling, and the remainingforms on the discarded stalks and leaves in the field are destroyedby the fire. NATURAL ENEMIES. There is present in Hawaii a ladybird beetle, Cryptolsemus mon-trouzieri Mills., which is a special mealy-bug feeder. This ladybirdis one of Mr. Koebeles introductions from Australia. It has provedparticularly beneficial in feeding upon the sugar-cane mealy-bugin the Hawaiian cane fields, and through its work the numbers of themealy-bug have been greatly reduced in recent years. This impor-tant predator has been established in California, and the Bureau ofEntomology at Washington, D. C, has under way at prese

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