1Department of Botany, Punjab Agricultural University, Ludhiana141004, India
Department of Forestry and Natural Resources, Punjab Agricultural University, Ludhiana141004, India
*Email: dhillongps1@pau.edu
Online Published on 16 May, 2022.
This study investigates the variation among Eucalyptus clones for incidence of gall wasp (Letocybe invasa) and relative changes in biochemical parameters. The three years, and replicated clonal trial involved 14 clones with monthly observations made on the gall wasp incidence. Significant variation was found among the clones, with maximum incidence being in F-316 and relatively the least incidence in C-413, PE-11, PE-14 and C-72. Gall wasp incidence gradually increased from January to April and declined thereafter. The total soluble sugars and phenol content in the infested leaves were found to increase by 49.2 and 22.8% respectively, whereas the protein content decreases (8.8% decrease).
Punjab, Eucalyptus, Letocybe invasa, Incidence, Soluble sugar, Total phenol, Protein, Seasonal incidence, Clone, F-316, C-413, PE-11, PE-14, C-72
