Yellow spray

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Yellow spray agents (also yellow carbolineum ) consist of dinitrocresol and a petroleum-based tar oil. They were used as a winter spray to control pest eggs ( frostbite , spider mites ) in fruit growing from 1940 to around 1975. The yellow spray displaced the previously used fruit tree karbolineum as the most important ovicide .

The months of March and April (bud break up to the mouse-eared stage ) were considered the most favorable spraying dates .

Individual evidence

  1. ↑ G. Liebster: Influence of winter spraying on the spring development of apple and pear trees . In: Scoreboard for pest science . tape 32 , no. 9 , September 1959, p. 134 , doi : 10.1007 / bf01982291 ( PDF ).
  2. ^ H. Umstätter: The petroleum engineer: A text and auxiliary book for the petroleum industry . Springer, 1951, ISBN 978-3-642-92557-3 , p. 506.
  3. ↑ H.-J. Wasserburger: Planning the winter spray in fruit growing . In: Agricultural engineering . tape 2 , no. October 10 , 1952, p. 299-301 ( PDF ).