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ARS Home » Pacific West Area » Wapato, Washington » Temperate Tree Fruit and Vegetable Research » Research » Publications at this Location » Publication #348547
Research Project: New Technologies and Strategies to Manage the Changing Pest Complex on Temperate Fruit Trees

Location: Temperate Tree Fruit and Vegetable Research

Title: Improved monitoring of oriental fruit moth (Lepidoptera: Tortricidae) with terpinyl acetate plus acetic acid membrane lures

Author
item MUJICA, V - National Agricultural Research Institute(INIA)
item PRETI, M - Free University Of Bozen-Bolzano
item BASOALTO, E - Universidad De Chile
item CICHON, L - National Institute Of Agricultural Technology(INTA)
item FUENTES-CONTRERAS, E - University Of Talca
item BARROS-PRADA, W - University Of Talca
item KRAWCZYK, G - Pennsylvania State University
item NUNES, M - Pennsylvania State University
item WALGENBACH, J - North Carolina State University
item HANSEN, R - Randy Hansen Agricultural Consulting
item Knight, Alan

Submitted to: Journal of Applied Entomology
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/7/2018
Publication Date: N/A
Citation: N/A

Interpretive Summary: Effective, low-cost monitoring of tree fruit pests is an important component of developing integrated programs which can minimize the use of insecticides. Researchers at the USDA, ARS, Temperate Tree Fruit & Vegetable Research Unit, Wapato, WA in collaboration with researchers in Uruguay, Italy, Chile, Argentina, Pennsylvania, and North Carolina evaluated a range of new lure combinations for oriental fruit moth in peach and apple. It was determined that a new lure was more effective than the sex pheromone lure and caught both sexes. Information from this research supports the continued effort to develop even more effective lures that can be used in trap-based monitoring program for important moth pests in tree fruits.

Technical Abstract: Male and female moth catches of Grapholita molesta (Busck) in traps were evaluated in stone and pome fruit orchards untreated or treated with sex pheromones for mating disruption in Uruguay, Argentina, Chile, USA, and Italy from 2015 - 2017. Trials evaluated various blends loaded into either membrane cup lures or septa. Membrane lures were loaded with terpinyl acetate (TA), acetic acid (AA), and (Z)-3-hexenyl acetate alone or in combinations. Two septa lures were loaded with either the three component sex pheromone blend for G. molesta alone or in combination with codlemone (2-PH), the sex pheromone of Cydia pomonella (L). A third septum lure included the combination sex pheromone blend plus pear ester, (E,Z)-2,4-ethyl decadienoate (2-PH/PE), and a fourth septa was loaded with only ß-ocimene. Results were consistent across geographical areas showing that the addition of ß-ocimene or (Z)-3-hexenyl acetate did not increase moth catches. The addition of pear ester to the sex pheromone lure marginally increased moth catches. The use of TA and AA together significantly increased moth catches compared with the use of only one of the two components. Traps with the TA/AA lure outperformed the Ajar trap baited with a liquid TA plus sugar bait. The emission rate of AA was not a significant factor affecting the performance of the TA/AA lure. The addition of TA/AA significantly increased moth catches when combined with the 2-PH lure. The TA/AA lure also allowed traps to catch both sexes. Catch of C. pomonella with the 2-PH lure was comparable to the use of codlemone, however, moth catch was significantly reduced with the 2-PH/PE lure.