scholarly journals Kairomone and Camera Trapping New Zealand Flower Thrips, Thrips obscuratus

Insects ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 622
Author(s):  
David Maxwell Suckling ◽  
Mailee E. Stanbury ◽  
Ox Lennon ◽  
Kate M. Colhoun ◽  
Fabio Chinellato ◽  
...  
Keyword(s):  
New Zealand ◽  
Insect Flight ◽  
Fold Increase ◽  
Camera Traps ◽  
Future Research ◽  
The Internet ◽  
Mass Trapping ◽  
Flower Thrips ◽  
Manual Counting ◽  
Thrips Obscuratus

This project investigated how kairomone lures, camera traps, and counting software could together contribute to pest management. Images of cumulative daily catch of New Zealand Flower Thrips (NZFT) attracted to a ripe peach lactone (6-pentyl-2H-pyran-2-one; 6-PAP) were automatically loaded to the internet and compared with scanned bases checked weekly using in-house software and manual counting. Camera traps were able to provide thrips counts equivalent to delta traps, but daily and remotely. An 11-fold greater NZFT count occurred within 24 h in passive traps after polyethylene sachets loaded with 250 mg of 6-PAP were placed in trees. Intensive trapping, by placing 1, 2, 4, and 8 traps per tree (500 mg/trap), resulted in a maximum 32-fold increase in thrips per tree. While 6-PAP has proved to be a useful tool for monitoring NZFT numbers, our results suggest that it is not likely to be suitable for mass trapping. Future research should investigate NZFT behavior to better understand population movement on an area-wide basis. Camera traps can be a valuable tool for recording insect flight activity remotely, but the number of traps required for statistically reliable estimates may be prohibitive.

scholarly journals Monitoring and manipulation of New Zealand flower thrips (Thrips obscuratus) in summerfruit orchards

2013 ◽  
Vol 66 ◽  
pp. 378-378
Author(s):  
M.E. Stanbury ◽  
E. de Vries ◽  
A.M. El-Sayed ◽  
F. Chinellato ◽  
K.M. Colhoun ◽  
...  
Keyword(s):  
New Zealand ◽  
Linear Growth ◽  
Daily Variation ◽  
Mass Trapping ◽  
Direct Proportion ◽  
Growth Trend ◽  
Daily Monitoring ◽  
Flower Thrips ◽  
Thrips Obscuratus ◽  
Fruit Orchards

New Zealand flower thrips (NZFT) are a pest in New Zealand stone fruit orchards In this study NZFT density was manipulated in the field using a known kairomone It was discovered that the addition of the kairomone to any given tree within an orchard increased NZFT density in direct proportion to the amount of kairomone used It was also found that delta traps baited with kairomone must be within 15 m from each other before trap competition occurs indicating a high density of traps is required for mass trapping Daily monitoring of NZFT catch using selfreporting camera trap technology in a Clyde orchard revealed that despite large daily variation in NZFT catch the population displayed a linear growth trend This indicates that NZFT establishment in Central Otago cannot be explained by the sudden arrival of windborne adults as previously thought These results indicate that it may be possible to manipulate NZFT density within an orchard in such a way that the majority of fruiting trees are protected by trap trees during harvest

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 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

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