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Die Kohlensäure‐Sauerstott‐Druckmethode zur Bekämpfung der Großen Narzissenfliege ( Lampetia Equestris F.)
Author(s) -
Loosdrecht W. E.
Publication year - 2009
Publication title -
zeitschrift für angewandte entomologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0044-2240
DOI - 10.1111/j.1439-0418.1956.tb01590.x
Subject(s) - oxygen , compressed air , carbonic acid , chemistry , organic chemistry
Summary The Carbonic Acid‐Oxygen‐Pressure Method to combat the Daffodilfly ( Lampetia equestris F.) From the experimentations is resulting that, by emptying of the thanks the grubs are fainted in some degree. — The gases are remaining in the bulbs and through it the grubs are killed after 6 days at an exactly composed mixture of gases (viz. the trials 8, 16 and 20). — The oxygen cannot be replaced by compressed air (viz. trial 15). — A mixture of oxygen and compressed air together with the acid carbonic has little influence (viz. trial 21). — A delay of treatment of 8 hours is to be considered as the shortest (viz. the trials 8, 16 and 20). — 6 days after treatment — during a correctly composed gasmixture — no living grubs still are to be find in the bulbs. — An increasing of the acid carbonic mixture on 30%, with 70% oxygen, is most efficient (viz. f. i. the trials 8 and 12).