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Mating disruption for control of the...

Kovanci, Orkun Baris.

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Mating disruption for control of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), in North Carolina apple orchards.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Mating disruption for control of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), in North Carolina apple orchards./
Author:	Kovanci, Orkun Baris.
Description:	114 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-07, Section: B, page: 3063.
Contained By:	Dissertation Abstracts International64-07B.
Subject:	Biology, Entomology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3098972

Mating disruption for control of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), in North Carolina apple orchards.
Kovanci, Orkun Baris.

Mating disruption for control of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), in North Carolina apple orchards. - 114 p.

Source: Dissertation Abstracts International, Volume: 64-07, Section: B, page: 3063.

Thesis (Ph.D.)--North Carolina State University, 2003.

Oriental fruit moth, Grapholita molesta (Busck), has been a primary pest of peaches for many years throughout the world, and recently it has also emerged as a key pest of apples in the eastern United States. The implementation of the Food Quality Protection Act has eliminated the use of many organophosphate insecticides and encouraged the search for alternatives to organophosphates for control of Oriental fruit moth. Large and small plot studies were conducted to evaluate mating disruption as an alternative control tactic against Oriental fruit moth in North Carolina apple orchards during 2000--2002. The efficacy of Isomate-M 100 pheromone dispensers and microencapsulated sprayable pheromone were compared to insecticide-treated and non-managed blocks. Pheromone trap catches were significantly reduced in mating disruption blocks compared with conventional and non-managed orchards. Pheromone traps placed in the upper canopy captured significantly more moths than traps placed in the lower canopy across all treatments. Male OFM responded optimally to traps baited with 100 mug lures compared with 30 and 300 mug lures regardless of treatment. The loss of OFM pheromone from red rubber septa over a four-wk period exhibited a first-order release rate for septa loaded with 100 and 300 mug pheromone, but a more constant release rate from septa loaded with 30 mug pheromone. Based on pheromone trap captures, there was little difference among rates of sprayable pheromone ranging from 12.4 to 49.1 g (ai)/ha, but efficacy declined at 2.4 g (ai)/ha applied at monthly intervals. The 6.2 g (ai)/ha rate applied at 2-wk intervals was significantly less effective than monthly applications of 12.4 and 24.7 g (ai)/ha. Significantly fewer moths were caught in pheromone traps deployed in blocks treated in late May with Isomate-M 100, Isomate-M Rosso and Isomate-M 100 plus 3M sprayable pheromone compared with traps in conventional insecticide treatments, and Isomate-M 100 applied in late June. Overall, fruit damage by OFM larvae was quite low in mating disruption blocks.Subjects--Topical Terms:

1018619
Biology, Entomology.

Mating disruption for control of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), in North Carolina apple orchards.
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100 1 $a Kovanci, Orkun Baris. $3 1949599
245 1 0 $a Mating disruption for control of the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae), in North Carolina apple orchards.
300 $a 114 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-07, Section: B, page: 3063.
500 $a Directors: James F. Walgenbach; George G. Kennedy.
502 $a Thesis (Ph.D.)--North Carolina State University, 2003.
520 $a Oriental fruit moth, Grapholita molesta (Busck), has been a primary pest of peaches for many years throughout the world, and recently it has also emerged as a key pest of apples in the eastern United States. The implementation of the Food Quality Protection Act has eliminated the use of many organophosphate insecticides and encouraged the search for alternatives to organophosphates for control of Oriental fruit moth. Large and small plot studies were conducted to evaluate mating disruption as an alternative control tactic against Oriental fruit moth in North Carolina apple orchards during 2000--2002. The efficacy of Isomate-M 100 pheromone dispensers and microencapsulated sprayable pheromone were compared to insecticide-treated and non-managed blocks. Pheromone trap catches were significantly reduced in mating disruption blocks compared with conventional and non-managed orchards. Pheromone traps placed in the upper canopy captured significantly more moths than traps placed in the lower canopy across all treatments. Male OFM responded optimally to traps baited with 100 mug lures compared with 30 and 300 mug lures regardless of treatment. The loss of OFM pheromone from red rubber septa over a four-wk period exhibited a first-order release rate for septa loaded with 100 and 300 mug pheromone, but a more constant release rate from septa loaded with 30 mug pheromone. Based on pheromone trap captures, there was little difference among rates of sprayable pheromone ranging from 12.4 to 49.1 g (ai)/ha, but efficacy declined at 2.4 g (ai)/ha applied at monthly intervals. The 6.2 g (ai)/ha rate applied at 2-wk intervals was significantly less effective than monthly applications of 12.4 and 24.7 g (ai)/ha. Significantly fewer moths were caught in pheromone traps deployed in blocks treated in late May with Isomate-M 100, Isomate-M Rosso and Isomate-M 100 plus 3M sprayable pheromone compared with traps in conventional insecticide treatments, and Isomate-M 100 applied in late June. Overall, fruit damage by OFM larvae was quite low in mating disruption blocks.
590 $a School code: 0155.
650 4 $a Biology, Entomology. $3 1018619
650 4 $a Agriculture, Agronomy. $3 1018679
690 $a 0353
690 $a 0285
710 2 0 $a North Carolina State University. $3 1018772
773 0 $t Dissertation Abstracts International $g 64-07B.
790 1 0 $a Walgenbach, James F., $e advisor
790 1 0 $a Kennedy, George G., $e advisor
790 $a 0155
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3098972