Long-distance movement of New Zealand flower thrips (<i>Thrips obscuratus Crawford</i>) (Thysanoptera: Thripidae) into Central Otago orchards

McLaren, G.F.; Reid, S.; Colhoun, K.

doi:10.1080/00779962.2010.9722185

Cited by 8 publications

(13 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Long-distance dispersal events may be a feature of many such small insects, not just fig wasps [18,65,66] and provide a likely explanation for 'Slatkin's paradox', that direct observations of insect dispersal underestimate their potential to generate gene flow [8,17]. In the case of fig wasps, where they are the sole dispersers of their host's pollen, gene flow among the insect and plant populations is intimately linked.…”

Section: (B) Pollinator Effectivenessmentioning

confidence: 99%

Movements of genes between populations: are pollinators more effective at transferring their own or plant genetic markers?

et al. 2015

View full text Add to dashboard Cite

The transfer of genes between populations is increasingly important in a world where pollinators are declining, plant and animal populations are increasingly fragmented and climate change is forcing shifts in distribution. The distances that pollen can be transported by small insects are impressive, as is the extensive gene flow between their own populations. We compared the relative ease by which small insects introduce genetic markers into their own and host-plant populations. Gene flow via seeds and pollen between populations of an Asian fig species were evaluated using cpDNA and nuclear DNA markers, and between-population gene flow of its pollinator fig wasp was determined using microsatellites. This insect is the tree's only pollinator locally, and only reproduces in its figs. The plant's pollen-to-seed dispersal ratio was 9.183-9.437, smaller than that recorded for other Ficus. The relative effectiveness of the pollinator at introducing markers into its own populations was higher than the rate it introduced markers into the plant's populations (ratio ¼ 14 : 1), but given the demographic differences between plant and pollinator, pollen transfer effectiveness is remarkably high. Resource availability affects the dispersal of fig wasps, and host-plant flowering phenology here and in other plant-pollinator systems may strongly influence relative gene flow rates.

show abstract

Section: (B) Pollinator Effectivenessmentioning

confidence: 99%

Movements of genes between populations: are pollinators more effective at transferring their own or plant genetic markers?

et al. 2015

View full text Add to dashboard Cite

show abstract

“…; McLaren et al. ), and T. tabaci may disperse similar distances. Alfalfa, Medicago sativa L., and winter grains such as rye, Secale cereal L., wheat, Triticum aestivum L., and oat, Avena sativa L., are also hosts of T. tabaci (North and Shelton ) and are grown outside of muck cropping systems near Elba, Potter and Sodus, NY.…”

Section: Discussionmentioning

confidence: 98%

Onion thrips colonization of onion fields bordering crop and non‐crop habitats in muck cropping systems

Smith

Shields

Nault

2017

J Applied Entomology

View full text Add to dashboard Cite

Onion thrips, Thrips tabaci Lindeman, colonization of onion fields may be influenced by bordering crop and non‐crop habitats. Identifying habitats adjacent to onion fields associated with high T. tabaci infestations would be valuable for improving scouting efforts and management decisions. A 3‐year study examined adult T. tabaci colonization patterns within onion fields early (June through early July) and late in the season (August) in three muck regions in New York (USA). We hypothesized that early‐season adult densities would be greater in onion fields bordering other crops (e.g. carrot, corn and potato) and non‐crops (e.g. woods) than those bordering other onion fields and that more adults would occur along onion field edges than field centres. Results indicated similar adult densities in onion fields regardless of bordering crop and non‐crop habitats in seven of nine muck region × year data sets; exceptions were more adults in onion fields bordering potato (Elba region only) and corn (Potter region only) than those bordering other onion fields. Adult densities decreased as distance into onion fields increased in only four of nine muck region × year data sets; in these cases only 38% more adults were found along field edges than field centres. Later in the season, we hypothesized that adult densities would be greater in non‐mature onion fields bordering mature onion fields, and densities would be greater along field edges than field centres. Results indicated that adult densities in non‐mature onion fields bordering mature onion fields were 54 times greater than those bordering other non‐mature onion fields, and four times more adults occurred along field edges than field centres; adult densities were similar along field edges and centres in non‐mature onion fields bordering other non‐mature onion fields. Implications for T. tabaci management in onion based on these colonization patterns are discussed.

show abstract

“…Further research should be conducted to determine the abundance of thrips at greater heights above the canopy of the orchard, which may be of use in investigating whether thrips are present all year round in orchards or whether there are mass migrations to the orchards from other host plants or regions. Mass migration is considered likely, as NZFT are thought to be able to travel with the prevailing winds over long distances and have a very wide host range with many possible points of origin in other flowering plants.…”

Section: Discussionmentioning

confidence: 99%

“…Interestingly, the decline in thrips at the Waipara vineyard coincides with the timing of the increase in thrips at Cheskin Orchard. This may indicate that NZFT switch host plants over the summer season, and can undertake long‐distance migration . Observations in orchards suggest that the NZFT track ripening fruit at row scale and shift during harvesting.…”

Section: Discussionmentioning

confidence: 99%

Development of an efficient trapping system for New Zealand flower thrips, Thrips obscuratus

et al. 2014

View full text Add to dashboard Cite

Delta traps containing 6-pentyl-2H-pyran-2-one in a polyethylene bag at 2 m above the ground is the recommended method for monitoring NZFT, significantly improving the sensitivity, accuracy and labour input compared with prior methods. Long-term monitoring of NZFT could lead to more accurate economic damage thresholds and timing for when to apply insecticides. © 2014 Society of Chemical Industry.

show abstract

Long-distance movement of New Zealand flower thrips (Thrips obscuratus Crawford) (Thysanoptera: Thripidae) into Central Otago orchards

Cited by 8 publications

References 21 publications

Movements of genes between populations: are pollinators more effective at transferring their own or plant genetic markers?

Movements of genes between populations: are pollinators more effective at transferring their own or plant genetic markers?

Onion thrips colonization of onion fields bordering crop and non‐crop habitats in muck cropping systems

Development of an efficient trapping system for New Zealand flower thrips, Thrips obscuratus

Contact Info

Product

Resources

About