Premium
Yield Reductions in Reed Canarygrass Caused by Frit Fly Infestation 1
Author(s) -
Wolf Dale D.
Publication year - 1967
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1967.0011183x000700030021x
Subject(s) - infestation , biology , agronomy , hectare , forage , yield (engineering) , milking , zoology , agriculture , ecology , materials science , metallurgy
Yields of reed canarygrass were reduced 0.52 metric ton per hectare in second harvest due to frit fly infestation. Plant height and weight of individual tillers were reduced by as much as one‐half by infestation. Insect control resulted in aftermath yield increases of 32% in low nitrogen plots and 17% in high nitrogen plots. Infestation interrupted normal morphological and physiological development. It is proposed that residue left by the feeding larvae may influence forage acceptability of grazing animals.