Frass-drop Studies of Larvae of Neodiprion americanus banksianae Roh. and N. lecontei (Fitch) (Hymenoptera: Diprionidae)

Author:

Green G W.,deFreitas A. S.

Abstract

Among others, Schwerdtfeger, 1931, Gosswald, 1934, and Morris, 1949, have used frass-drop samples as indirect measurements of the density of forest insect populations with some success. The method has also been used to assess the effects of various insecticides on the feeding of treated larvae (Rhumbler, 1929; Schwerdtfeger, 1930) and to study the influence of weather upon the feeding and development of forest insects (Monro, 1935).

Publisher

Cambridge University Press (CUP)

Subject

Insect Science,Molecular Biology,Physiology,Ecology, Evolution, Behavior and Systematics,Structural Biology

Reference8 articles.

1. Monro H. A. U. 1935. The ecology of the pine sawfly (Diprion simile Htg.). Unpublished thesis, McGill University.

2. Humidity Reactions and Water Balance of Larvae ofNeodiprion americanus banksianaeRoh. andL.lecontei(Fitch) (Hymenoptera: Diprionidae)

3. A New Type of Coprometer for Laboratory and Field Use

4. Morris R. F. 1949, Frass-drop measurement in studies of the European spruce sawfly. Univ. of Mich. School of For. and Cons. Bulletin No. 12.

5. Zur Begiftung des Kiefernspanners (Bupalus piniarius L.) in der Oberförsterei Hersfeld-Ost 1926

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