Reduction in Pear Psylla (Homoptera: Psyllidae) Oviposition and Feeding by Foliar Application of Various Materials

Abstract

Several horticultural oils, an insecticidal soap, neem, garlic extract, a sugar ester, and a synthetic insect growth regulator were evaluated under laboratory conditions for their ability to inhibit pear psylla’s [Cacopsylla pyricola (Foerster)] feeding and oviposition. Supreme oil significantly reduced winterform oviposition rates in both choice and no-choice assays and reduced feeding rates in no-choice assays. Supreme oil also reduced oviposition rates of summerform females in choice tests but not in no-choice tests. In addition, summerform oviposition rates were reduced significantly by application of several mineral oils (Orchex 796E, 692, and WS2928) and garlic barrier to pear foliage in no-choice tests, and by all oils, garlic barrier, and M-Pede in choice tests. Summerform feeding rates were reduced by application of mineral oils. Data suggest that "summer type" oils and other compounds may have utility in pear psylla management programs by decreasing feeding and oviposition.

A Review on the Mode of Action and Current Use of Petroleum Distilled Spray Oils

“…Antifeedant properties of oils and starvation through deterrence have also been documented (Baxendale and Johnson, 1988;Najar-Rodríguez et al, 2007;. The deterrent effect of oil residues on oviposition has been observed in the citrus leafminer Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae) Rae et al, 1996), codling moth (L.) (Lepidoptera: Tortricidae) (Riedl et al, 1995), white apple leafhopper (Hemiptera: Cicadellidae) (Fernandez et al, 2001), the pear psylla Cacopsylla pyricola (Homoptera: Psyllidae) Foerster (Zwick and Westigard, 1978;Weissling et al, 1997), and whiteflies (Larew and Locke, 1990;Larew, 1988;Liang and Liu, 2002). Studies by Mensah et al (2001Mensah et al ( , 2002 have also shown that application of 2% (v/v) rate of Canopy® oil (nC27) to cotton and 4-5% (v/v) Texaco® oil (nC24) to maize plants can reduce oviposition of Helicoverpa spp.…”

“…Thus, once limited to early season or dormant sprays to avoid oil injury to green plant tissue, newer narrow-range PDSOs are being reconsidered and assessed for incorporation into integrated pest management programs. PDSOs have been found to be effective against numerous orchard pests including scales and mites Beattie and Smith, 1993), whiteflies (Larew and Locke, 1990;Liang and Liu, 2002), aphids (Najar-Rodríguez et al, 2007), psylla (Zwick and Westigard, 1978;Weissling et al, 1997), and fruit-feeding Lepidoptera (Davidson et al, 1991;Al Dabel et al, 2008). In apple orchards, the interest in PDSOs as part of integrated pest management programs has increased in the past years, particularly for the control of secondary pests (Fernandez et al, 2005).…”

Evaluation of petroleum based horticulture oil for the management of the tea red spider mite, Oligonychus coffeae Neitner (Acarina: Tetranychidae)

“…Although petroleum based horticultural oils have been found to be effective against numerous orchard pests including scales and mites (Beattie et al, 1995;Beattie, 1990;Beattie and Smith, 1993), whiteflies (Larew and Locke, 1990;Liang and Liu, 2002), aphids (Najar-Rodríguez et al, 2007), psylla (Zwick and Westigard, 1978;Weissling et al, 1997), and fruit-feeding Lepidoptera (Davidson et al, 1991;Al Dabel et al, 2008), but to best of our knowledge, this is the first report of petroleum based horticultural oil in details showing acaricidal activity against the tea red spider mite, O. coffeae form tea plantation of North East India. As the chosen petroleum based horticultural oil (Servo agro spray oil) is produced by Indian Oil Corporation (IOC), is also shipped to different parts of tea growing region of Assam and approved for organic farming by USOCA, it could effectively be utilized in the IPM programme of tea.…”

Oviposition responses of Queensland fruit fly (Bactrocera tryoni) to mineral oil deposits on tomato fruit

“…Numbers of punctures and eggs per fruit declined significantly with increasing concentrations of oil in aqueous emulsions of the oil fractions tested and the two commercial products in which fruits were dipped. The nature of these oviposition responses is consistent with impacts of oil deposits on feeding and oviposition behaviours of a range of arthropods: citrus leafminer (Beattie et al, 1995a), macadamia leaf miner, Acrocercops chionosema Turner (Nicetic et al, 2000), American serpentine leafminer, Liriomyza trifolii (Burgess) (Larew, 1988b), chrysanthemum leaf miner, Chromatomyia syngenesiae (Hardy) (Kallianpur et al, 2000a), greenhouse whitefly, Trialeurodes vaporariorum Westwood (Larew, 1988a;Larew & Locke, 1990;Xue et al, 2002b), sweetpotato whitefly, Bemisia tabaci (Gennadius) (Stansly et al, 2002), bronze orange bug, Musgraveia sulciventris (St al) (Kallianpur et al, 2000b), greenhouse thrips, Heliothrips haemorrhoidalis (Bouch e) (Liu et al, 2002b), western flower thrips, Frankliniella occidentalis (Pergande) (Kallianpur et al, 2000c), tomato thrips, Frankliniella schultzei (Trybom) (Xue et al, 2002a), Asiatic citrus psyllid, Diaphorina citri Kuwayama (Rae et al, 1997;Yang et al, 2013), pear psylla, Cacopsylla pyricola (F€ orster) (Weissling et al, 1977;Zwick & Westigard, 1978), citrus red mite, Panonychus citri (McGregor) (Cen et al, 2002), and two-spotted spider mite, Tetranychus urticae Koch .…”