scholarly journals Postharvest Control of Western Flower Thrips (Thysanoptera: Thripidae) and California Red Scale (Hemiptera: Diaspididae) With Ethyl Formate and Its Impact on Citrus Fruit Quality

2013 ◽  
Vol 106 (6) ◽  
pp. 2341-2348 ◽  
Author(s):  
Francine Pupin ◽  
Veronique Bikoba ◽  
William B. Biasi ◽  
Gabriel M. Pedroso ◽  
Yuling Ouyang ◽  
...  
Keyword(s):  
Fruit Quality ◽  
Citrus Fruit ◽  
Western Flower Thrips ◽  
Ethyl Formate ◽  
Flower Thrips ◽  
Postharvest Control

scholarly journals Postharvest management of New Zealand flower thrips on export apricots using ethyl formate

2014 ◽  
Vol 67 ◽  
pp. 103-108
Author(s):  
S.P. Redpath ◽  
A. Wilson ◽  
L.E. Jamieson ◽  
N.E.M. Page-Weir ◽  
M.J. Griffin ◽  
...  
Keyword(s):  
New Zealand ◽  
Adverse Effects ◽  
Fruit Quality ◽  
Larval Mortality ◽  
Ethyl Formate ◽  
Export Markets ◽  
Flower Thrips ◽  
Shipping Containers ◽  
Postharvest Management ◽  
Thrips Obscuratus

New Zealand flower thrips (NZFT Thrips obscuratus) is the most abundant pest on New Zealand apricots at harvest and is a quarantine pest for apricot export markets Ethyl formate (EF) is a Generally Recognised As Safe (GRAS) compound being investigated treatments against NZFT and their impact on apricot fruit quality in shipping containers NZFT adults and larvae on apricots were treated in field bins of apricots in a 282 m3 in Hawkes Bay and Central Otago respectively In Hawkes Bay the treatments resulted in 100 mortality of NZFT adults and larvae In Central Otago the treatments resulted in 100 mortality of NZFT adults and 98100 larval mortality Export grade apricot cultivars expressed no adverse effects on quality to this concentration of EFCO2

A cold treatment for postharvest control of western flower thrips on strawberry runners

2005 ◽  
Vol 45 (12) ◽  
pp. 1649
Author(s):  
P. Williams ◽  
K. M. Green ◽  
B. Swanson
Keyword(s):  
Frankliniella Occidentalis ◽  
Cold Treatment ◽  
Western Flower Thrips ◽  
Exposure Period ◽  
Life Stages ◽  
Flower Thrips ◽  
Strawberry Runner ◽  
Potential Strategy ◽  
Postharvest Control ◽  
Leaf Disks

In 1998–99, outbreaks of Frankliniella occidentalis (Pergrande), western flower thrips (WFT), caused extensive damage to strawberry crops in the Yarra Valley, Victoria. These crops were within 30 km of Toolangi where over 80% of certified strawberry runners for Australia are produced. Commercial growers store runners for various periods of time at temperatures as low as –2°C. Cold temperature disinfestation was evaluated as a potential strategy in a contingency plan to prevent the spread of WFT on strawberry runners. Western flower thrips at various life stages on gerbera flowers (on which they were reared), were placed in small bags, made from the plastic liners used in commercial strawberry runner cartons, together with strawberry runners and exposed to –2°C for periods of 1, 2, 4, or 8 weeks. All WFT died within 4 weeks. Additional experiments were conducted in which WFT, in bags with runners or on gerbera leaf disks in petri dishes, were exposed to –2°C for 3 weeks. Only a few WFT survived these treatments; however, they were moribund. When they were assessed 2 days after completion of the exposure period, all WFT were dead. It was concluded that strawberry runners carrying WFT can be disinfested by exposing WFT to –2°C for 4 weeks and that this should be achievable under commercial conditions.

Efficacy of plant volatiles for postharvest control of western flower thrips in fresh produce

2008 ◽  
Vol 61 ◽  
pp. 197-204
Author(s):  
C.W. Van_Epenhuijsen ◽  
K.G. Somerfield ◽  
D. Hedderley
Keyword(s):  
Plant Material ◽  
Plant Volatiles ◽  
Frankliniella Occidentalis ◽  
Fresh Produce ◽  
Western Flower Thrips ◽  
The Other ◽  
Insect Infestation ◽  
Main Compound ◽  
Flower Thrips ◽  
Postharvest Control

Insect infestation of fresh produce exported from New Zealand is an ongoing issue for exporters Seventeen lowhazard volatile compounds were screened for their potential as fumigants for controlling adults nymphs and eggs of western flower thrips (WFT) Frankliniella occidentalis (Pergande) WFT infested chrysanthemum flowers were exposed to volatiles in glass jars with circulation fans Higher mortality was achieved for adults than for nymphs/eggs Mortality after the 6 h exposure was greater than after the 2 h exposure Compounds that had good efficacy against WFT included 2propyn1ol diallyl sulphide (the main compound of garlic oils) 2methyl(E)butenal and ethyl acetate Of these 2propyn1ol caused significant phytotoxicity at the concentrations tested The other three were tolerated by the plant material and are worth further investigation

scholarly journals Postharvest management of New Zealand flower thrips (Thrips obscuratus) on apricots using ethyl formate or pyrethrumbased treatments

2013 ◽  
Vol 66 ◽  
pp. 63-74
Author(s):  
A. Chhagan ◽  
L.E. Jamieson ◽  
M.J. Griffin ◽  
N.E.M. Page-Weir ◽  
J. Poulton ◽  
...  
Keyword(s):  
New Zealand ◽  
Fruit Quality ◽  
Ethyl Formate ◽  
Lethal Concentration ◽  
Internal Damage ◽  
Flower Thrips ◽  
Postharvest Treatments ◽  
Postharvest Management ◽  
Thrips Obscuratus ◽  
Effective Treatments

New Zealand flower thrips (NZFT Thrips obscuratus (Crawford)) were exposed to a range of ethyl formate (EF) and pyrethrumbased postharvest treatments on apricots Research showed that EFCO2 or EFN2 were effective treatments against NZFT and caused negligible damage to apricot fruit quality However pyrethrum dipping did not effectively control NZFT and caused significant internal damage to apricot fruit Lethal concentration (LC99) estimates were developed for adult and larval NZFT using a range of EF concentrations (0127 EFCO2) and temperatures (5 15 and 25C) It is estimated that treatments of 1 (307 g/m3) EF at 5 or 25C or a higher concentration of 15 (463 g/m3) at 15C will achieve 99 mortality of NZFT adults and larvae on apricot fruit with 95 confidence

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