Open AccessThe tolerance of tomato potato psyllid life stages to ethyl formate
Author(s) -
L.E. Jamieson,
Maryclare Griffin,
N.E.M. Page-Weir,
S.P. Redpath,
A. Chhagan,
P.G. Connolly,
Allan B. Woolf
Publication year - 2015
Publication title -
proceedings of the new zealand weed and pest control conference/new zealand plant protection/proceedings of the ... national weeds conference/proceedings of the new zealand weed control conference/proceedings of the new zealand plant protection conference
Language(s) - English
Resource type - Journals
eISSN - 0370-2804
pISSN - 0370-0968
DOI - 10.30843/nzpp.2015.68.5872
Subject(s) - biology , nymph , fumigation , ethyl formate , horticulture , bromide , browning , toxicology , botany , chemistry , materials science , organic chemistry , metallurgy
Methyl bromide fumigation became mandatory for capsicums and truss tomatoes exported to Australia after tomato potato psyllid (TPP) was detected in 2006 in New Zealand Methyl bromide detrimentally affects product quality by increasing rots and the browning of the green stems An alternative being tested is ethyl formate (EF) and carbon dioxide commercially available as VAPORMATEreg; This study examined the tolerances of different life stages of TPP to EF Eggs were considerably more tolerant of EF than adults and nymphs Complete elimination of egg hatch was achieved after a 1h exposure to 119 EF In contrast all nymphs and adults were killed after a 1h exposure to 012 and 006 EF respectively Assessment of egg mortality was altered to better reflect the posthatch treatment effects on nymph survival In a subsequent egg age tolerance trial mean lethal concentrations for 99 mortality ranged from ca 1 EF for young and older eggs to ca 15 EF for midaged eggs