Postharvest survival of navel orangeworm assessed in pistachios
AuthorsGlen Y. Yokota
Kent M. Daane
Joel P. Siegel
L.P.S. (Bas) Kuenen
Bradley S. Higbee
Authors AffiliationsG.Y. Yokota is Staff Research Associate, R. Krugner was Laboratory Assistant, and K.M. Daane is UC Cooperative Extension Specialist, Department of Environmental Science, Policy and Management, UC Berkeley (currently, R. Krugner is Research Entomologist, USDA ARS, San Joaquin Valley Agricultural Sciences Center). The authors gratefully acknowledge the help of James Bettiga of S&J Ranch and Mike Braga of Nichols Farm for providing field sites, and thank anonymous reviewers for comments on the manuscript. This research was funded in part by the California Pistachio Commission; J.P. Siegel is Research Entomologist, L.P.S. (Bas) Kuenen is Research Entomologist, and P. Noble and R. Gill are Biological Science Technicians, U.S. Department of Agriculture Agricultural Research Service (USDA ARS), San Joaquin Valley Agricultural Sciences Center, Commodity Protection and Quarantine Research Unit, Parlier; B.S. Higbee is Research Entomologist, Paramount Farming Company, Bakersfield.
Hilgardia 62(1):30-35. DOI:10.3733/ca.v062n01p30. January 2008.
Controlling navel orangeworm, a key pistachio pest, is problematic because the moth overwinters in “mummy” nuts. After harvest, there may be more than 30,000 pistachio nuts (mummies) left behind per acre. To provide better information for winter sanitation decisions, we investigated the number of available mummies and their levels of navel orangeworm infestation from winter through early summer in California pistachio orchards. Navel orangeworm mortality was highest from late December through mid-February, and was also higher on the ground than in trees. Mortality on the ground was highest when mummies were tilled or mowed with the groundcover than when nuts were left on the raised berm. Our data indicates that, in contrast to almonds, it is more productive to focus on clearing pistachios from the ground than on removing them from trees. However, winter sanitation procedures also should be augmented in order to destroy more overwintering navel orangeworm.
Agudelo-Silva F, Zalom FG, Hom A, Hendricks L. Dormant season application of Steinernema carpocapsae (Rhabditida: Steinernematidae) and Het-erorhabditis sp. (Rhabditida: Heterorhabditidae) on almond for control of overwintering Amyelois transitella and Anarsia lineatella (Lepidoptera: Gelechiidae). Fl Entomol. 1995. 78:516-23. https://doi.org/10.2307/3495537
Beede RH, Bentley W, Rice RE, et al. Navel orangeworm management in pistachio. California Pistachio Industry Annual Report, Crop Year 1983–84 1984. pp.61-68. http://www.acpistachios.org/research.php.
Bentley W, Holtz B, Daane K. Navel orangeworm (Amyelois transitella) (Walker) and oblique-banded leafroller (Choristoneura rosaceana) (Harris) as pests of pistachio. Pistachio Production Manual 2005. 4th ed.pp.197-203. http://fruitsandnuts.ucdavis.edu/crops/pistachio_index_2005.shtml UC ANR Pub.
Boriss H. Commodity Profile: Pistachios. UC Agricultural Issues Center, Davis, CA 2005. http://www.aic.ucdavis.edu/profiles/Pistachios-2005.pdf (accessed Dec. 2006).
Caltagirone LE, Meals DW, Shea KP. Almond sticktights contribute to navel orangeworm infestations. Cal Ag. 1968. 22(3):2-3.
[CPC] California Pistachio Commission. California Pistachio Industry Annual Report, Crop Year 2006–2007 2007. 68. http://www.acpistachios.org/research.php.
Daane KM, Krugner R, Yokota GY, Malakar-Kuenen R. Population dynamics of two moth pests, the oblique banded leafroller and the navel orangeworm, and their parasitoids in pistachio orchards. Pistachio Commission Interim Annual Report 2001. pp.260-275. http://www.acpistachios.org/research.php.
Doster MA, Michailides TJ. Aspergillus molds and aflatoxins in pistachio nuts in California. Phytopathol. 1994. 84:583-90. https://doi.org/10.1094/Phyto-84-583
Engle CE, Barnes MM. Developmental threshold temperature and heat unit accumulation required for egg hatch of navel orangeworm (Lepidoptera, Pyralidae). Environ Entomol. 1983. 12:1215-7.
Goldhamer DA, Beede RH. Regulated deficit irrigation effects on yield, nut quality and water-use efficiency of mature pistachio trees. J Hort Sci Biotech. 2004. 79:538-45.
Siegel JP, Higbee BS, Lacey LA, et al. Use of nematodes for postharvest control of navel orangeworm (Amyelois transitella) in fallen pistachios and assessment of current post harvest cultural control methods. California Pistachio Commission 2004 Production Research Reports 2004. pp.179-186. http://www.acpistachios.org/research.php.
Siegel JP, Higbee BS, Lacey LA, et al. Use of nematodes for post harvest control of navel orangeworm (Amyelois transitella) in fallen pistachios and assessment of current post harvest cultural control methods. California Pistachio Commission 2005 Production Research Reports 2006. pp.177-184. http://www.acpistachios.org/research.php.
Siegel JP, Lacey LA, Higbee BS, et al. Effect of application rates and abiotic factors on Steinernema carpocapsae for control of overwintering navel orangeworm (Lepidoptera: Pyralidae, Amyelois transitella) in pistachios. Biol Control. 2006. 36:324-30. https://doi.org/10.1016/j.biocontrol.2005.09.012
Siegel JP, Maddox JV, Ruesink WG. Survivorship of the European corn, Ostrinia nubilalis (Hübner) (Lepidoptera: Pyralidae) borer in Central Illinois. Environ Entomol. 1987. 16:1071-1075.
UC IPM Online. UC Pest Management Guidelines; Pistachio, Navel Orangeworm 2007. http://www.ipm.ucdavis.edu/PMG/r605300111.html (accessed May 2007).
Wade WH. Biology of the navel orangeworm, Paramyelois transitella (Walker), on almonds and walnuts in northern California. Hilgardia. 1961. 31:129-71.
Zalom FG, Barnett WW, Weakley CV. Efficacy of winter sanitation for managing the navel orangeworm, Paramyelois transitella (Walker) in California almond orchards. Prot Ecol. 1984. 7:37-41.
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