A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12 (Classic Reprint) - Brossura

Illingworth, J. F.

Brossura

ISBN 10: 1332309526 ISBN 13: 9781332309528

Casa editrice: Forgotten Books, 2018

Riassunto

Excerpt from A Study of Natural Methods of Control for White Grubs: Queensland, Bureau of Sugar Experiment Stations, Division of Entomology, Bulletin No; 12

Let me finally advise, however, that immediate results must not be looked for. A few dead grubs may be found from time to time but the hope that I am working on is the unusual season, such as that of 1920, when the presence of the spores over most of the infested cane areas Would probably do much toward a marked reduction in this terrible pest. Furthermore, since I am compelled shortly to give up the investigation of this tremendously important problem - control of the pests of sugar cane, due to which the industry loses hundreds of thousands Of pounds annually - I wish to recommend for the benefit of those most interested, the further introduction of other similar friendly organisms. I have had considerable correspondence on the subject, and would urge immediate investigation in Java. They have two species of grub-destroying bacteria, which might prove very beneficial here, since our rains come at the time that the grubs are active. At the same time, it would be possible to collect and breed a number of other natural enemies of the grubs, for introduction here. The Philippine Islands are also a rich source of similar organisms, as demonstrated by the Hawaiian Sugar Planters' entomologists. If we consider the economical production of sugar, the introduction of friendly organisms will be pushed as speedily as possible.

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Dettagli dell'edizione

• Editore: Forgotten Books
• Data di pubblicazione: 2018
• Lingua: Inglese
• ISBN 10: 1332309526
• ISBN 13: 9781332309528
• Rilegatura: Copertina flessibile
• Numero di pagine: 28
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