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Glandless Cotton: Susceptibility to Lygus hesperus Knight 1
Author(s) -
Tingey Ward M.,
Leigh Thomas F.,
Hyer Angus H.
Publication year - 1975
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/cropsci1975.0011183x001500020032x
Subject(s) - biology , pest analysis , miridae , nymph , lygus , gossypium , population , gossypium hirsutum , agronomy , toxicology , horticulture , botany , heteroptera , demography , sociology
Field and laboratory methods were used to study population growth and feeding damage of Lygus hesperus Knight (a major cotton pest) on isogenic lines of glandless and glanded cotton, Gossypium spp . In no‐choice field cages, a glandless genotype had 2.5 times more L. hesperus and 57% fewer bolls compared to its glanded equivalent. The larger lygus bug population on glandless cotton was attributed to a two‐fold increase in growth rate and survival of nymphs. Thus glandless cotton may require more intensive control of L. hesperus than normal glanded cotton, to minimize losses in yield and quality.