Field response of onion thrips and New Zealand flower thrips to single and binary blends of thrips lures

2010 ◽  
Vol 142 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Michael J. Wogin ◽  
Ruth C. Butler ◽  
David A.J. Teulon ◽  
Melanie M. Davidson
Keyword(s):  
New Zealand ◽  
Onion Thrips ◽  
Binary Blends ◽  
Male And Female ◽  
Water Trap ◽  
Flower Thrips ◽  
Ethyl Nicotinate ◽  
Field Response ◽  
Thrips Obscuratus ◽  
Ethyl Isonicotinate

AbstractTests were performed to determine whether combining two thrips lures, ethyl nicotinate (EN) and ethyl isonicotinate (EI), in the same water trap increased the numbers of New Zealand flower thrips (NZFT), Thrips obscuratus Crawford, and onion thrips, T. tabaci Lindeman (Thysanoptera: Terebrantia: Thripidae), caught in the field relative to traps with a single lure. Traps with both lures (1:1 ratio; mixture or separate adjacent vials) caught 5–9 times more female onion thrips (thelyotokous populations are the most prevalent in New Zealand) than traps with EN only (P<0.001), but in similar numbers to traps with EI only. Traps with both lures caught 2–3 times as many male and female NZFT than traps with EI only, but in similar numbers to traps with EN only. Thus, a combination of the two lures in one trap could be used to detect and monitor flying onion thrips and NZFT simultaneously.

scholarly journals Phenology of New Zealand flower thrips (Thrips obscuratus) in vineyards

2004 ◽  
Vol 57 ◽  
pp. 338-338
Author(s):  
K. Schmidt ◽  
D.A.J. Teulon ◽  
M-C. Nielsen ◽  
S.D. Wratten ◽  
M.V. Jaspers
Keyword(s):  
New Zealand ◽  
Flower Thrips ◽  
Thrips Obscuratus

Attraction of New Zealand Flower Thrips, Thrips obscuratus, to cis-Jasmone, a Volatile Identified from Japanese Honeysuckle Flowers

2009 ◽  
Vol 35 (6) ◽  
pp. 656-663 ◽  
Author(s):  
A. M. El-Sayed ◽  
V. J. Mitchell ◽  
G. F. McLaren ◽  
L. M. Manning ◽  
B. Bunn ◽  
...  
Keyword(s):  
New Zealand ◽  
Flower Thrips ◽  
Japanese Honeysuckle ◽  
Thrips Obscuratus

scholarly journals New Zealand flower thrips and their impact on nectarine fruit diseases

2003 ◽  
Vol 56 ◽  
pp. 157-163
Author(s):  
G.F. McLaren ◽  
J.A. Fraser ◽  
P.A. Alspach
Keyword(s):  
New Zealand ◽  
Pseudomonas Syringae ◽  
Brown Rot ◽  
Bacterial Disease ◽  
Disease Symptoms ◽  
Bacterial Diseases ◽  
Flower Thrips ◽  
Beginning Of Flowering ◽  
Thrips Obscuratus ◽  
The Impact

Insecticides fungicides and a bactericide were applied in spring 2001 and 2002 to nectarine trees to determine the impact of thrips (mainly New Zealand flower thrips Thrips obscuratus) on summerfruit pathogens Thrips numbers were assessed over 7 weeks from the beginning of flowering The insecticide programme increased the proportion of fruit meeting export standards for thrips damage but did not influence the level of either brown rot caused by Monilinia fructicola or the bacterial diseases bacterial blast (Pseudomonas syringae) and bacterial spot (Xanthomonas arboricola pv pruni) The fungicide programme reduced the level of brown rot Cumulative thrips counts were positively correlated with levels of brown rot infection on the fruit at harvest time in 2001/02 (P002) and 2002/03 (P009) and bacterial disease symptoms in 2001/ 02 (P003) It was concluded that New Zealand flower thrips could increase levels of disease in nectarines but the value of treating with insecticides was not clear

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

scholarly journals Diversity and seasonal fluctuation of thrips species on yellow tree lupin (Lupinus arboreus)

2009 ◽  
Vol 62 ◽  
pp. 63-68
Author(s):  
S. He ◽  
M-C. Nielsen ◽  
L.L. Fagan
Keyword(s):  
New Zealand ◽  
Relative Abundance ◽  
Frankliniella Occidentalis ◽  
Seasonal Fluctuation ◽  
Thrips Tabaci ◽  
Spatial And Temporal Variation ◽  
Onion Thrips ◽  
Lupinus Arboreus ◽  
Flower Thrips ◽  
Thrips Species

Yellow tree lupin (Lupinus arboreus) an abundant weed in New Zealand is host to several economically important thrips species The diversity and relative abundance of thrips found on yellow tree lupin were measured weekly via handcollections over the 2008/09 summer at two locations in Canterbury separated by 8 km From the 1540 thrips that were collected and slidemounted eight thrips species were identified The most abundant species was New Zealand flower thrips (Thrips obscuratus) followed by onion thrips (Thrips tabaci) the lupin strain of western flower thrips (Frankliniella occidentalis) Thrips vulgatissimus Thrips australis Limothrips cerealium Chirothrips manicatus and Tenothrips frici The largest variation in relative abundance occurred in early December with onion thrips dominant at Killinchy and western 64258;ower thrips dominant at Rakaia In late December at Rakaia the dominant species shifted to New Zealand 64258;ower thrips This indicates considerable spatial and temporal variation in relative abundance of thrips species

scholarly journals Alternative strategies to control New Zealand flower thrips on nectarines

2001 ◽  
Vol 54 ◽  
pp. 10-14 ◽  
Author(s):  
G.F. McLaren ◽  
J.A. Fraser
Keyword(s):  
New Zealand ◽  
Fruit Production ◽  
Control Measures ◽  
Harvest Time ◽  
Alternative Strategies ◽  
Flower Thrips ◽  
Organic Systems ◽  
Thrips Obscuratus ◽  
Integrated Fruit Production

Experiments conducted in both spring and preharvest (summer) aimed to prevent damage to nectarines caused by New Zealand flower thrips Thrips obscuratus and to minimise quarantine problems caused by thrips on export fruit Reflective mulch and three insecticide programmes were compared with the standard taufluvalinate/chlorpyrifos programme in spring Abamectin spinosad and Pyrethrum Plus reduced spring damage but none was more effective than the existing standard At harvest time carbaryl and spinosad plus Nufilm17 reduced thrips numbers 3 days after treatment but carbaryl was the only effective insecticide after 5 days Reflective mulch reduced thrips numbers in spring and preharvest providing a nonchemical alternative for thrips control However supplementary control measures would be needed for this treatment to meet quarantine standards at harvest time Alternative spring and preharvest programmes for both Integrated Fruit Production and organic systems are suggested for nectarines but registration is necessary before some insecticides can be used on summerfruit

scholarly journals Development of thresholds for insecticidal control of New Zealand flower thrips on nectarines in spring

2000 ◽  
Vol 53 ◽  
pp. 194-199 ◽  
Author(s):  
G.F. McLaren ◽  
J.A. Fraser
Keyword(s):  
New Zealand ◽  
Fruit Set ◽  
Fruit Production ◽  
Sensitive Period ◽  
Severe Damage ◽  
Flower Thrips ◽  
Adult Feeding ◽  
Production Programme ◽  
Thrips Obscuratus ◽  
Integrated Fruit Production

Numbers of adult and larval New Zealand flower thrips Thrips obscuratus were recorded daily on nectarines from flowering (early September) to shuck fall (early November) over 5 years Adults were more common than larvae and occurred throughout this period increasing to their highest numbers in late October Larvae occurred for three weeks from petal fall Adults were released weekly onto bagged nectarine flowers or fruitlets from flowering to shuck fall Damage to the fruit was assessed in November Adults caused the most severe damage when released during flowering; slightly less damage was caused after petal fall and minor damage occurred in the weeks before shuck fall Adult feeding did not affect fruit set Three thresholds based on adult numbers are proposed for determining the need for insecticidal control in an Integrated Fruit Production programme for nectarines These thresholds reflect the decreasing risk of damage through the sensitive period

scholarly journals Pyridine compounds increase trap capture of Frankliniella occidentalis (Pergande) in a covered crop

2007 ◽  
Vol 60 ◽  
pp. 56-60 ◽  
Author(s):  
M.M. Davidson ◽  
R.C. Butler ◽  
S. Winkler ◽  
D.A.J. Teulon
Keyword(s):  
New Zealand ◽  
Frankliniella Occidentalis ◽  
Crop Canopy ◽  
Rectangular Array ◽  
Sticky Traps ◽  
Ethyl Nicotinate ◽  
Trap Catches ◽  
Ethyl Isonicotinate ◽  
Yellow Sticky Traps

The effect of pyridine compounds on the capture of thrips was examined in an Auckland New Zealand capsicum greenhouse in 2004 Yellow sticky traps were positioned just above the crop canopy in a rectangular array with 6 traps per compound and 6 control traps 2024 m apart and left for 24 h Most thrips found on traps were Frankliniella occidentalis (>99) Fourteen times more female F occidentalis were captured on traps with methyl isonicotinate or ethyl isonicotinate than on controls Sticky traps treated with methyl 4pyridyl ketone also caught more female F occidentalis than controls (45) Sticky traps with methyl isonicotinate caught more male F occidentalis (up to 52) than controls Ethyl2chloropyridine4carboxylate and ethyl nicotinate did not increase trap catches of either sex The results demonstrated that selected pyridine compounds have the potential to improve trap capture of F occidentalis in a covered crop

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