Premium
OBSERVATIONS ON THE TIMOTHY GRASS FLY ( AMAUBOSOM A ARMILLATUM ZETT.)
Author(s) -
KING L. A. L.,
MEIKLE AGNES A.,
BROADFOOT A.
Publication year - 1935
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1935.tb07162.x
Subject(s) - biology , instar , larva , life history , inflorescence , nut , insect , horticulture , botany , agronomy , ecology , structural engineering , engineering
S ummary .1 A type of damage to the inflorescence of Timothy grass, which appears to be widely distributed, has been found in the west of Scotland to be due to Amaurosoma armillatum Zett . 2 Information is given as to occurrence in the field, method of attack on the plant, life history and characteristics of the insect in its different stages. Three larval instars are distinguished and the life history is noted as monocyclic. 3 Two Hymenopteron parasites are recorded. 4 Experiments are described which were designed to test possible methods of control (a) by soil‐treatment, (b) by deterrents. 5 Of the latter an emulsion of crude naphthalene in ground‐nut oil is recommended as promising. 6 It is suggested that the grass to be reserved for seed should be set apart early in the season and sprayed with this fluid at a time as near as possible to that of the egg‐laying.