New records of entomopathogenic fungi infecting Bemisia tabaci and Trialeurodes vaporariorum, pests of horticultural crops, in Argentina

Abstract

The whiteflies Bemisia tabaci (Gennadius) and Trialeurodes vaporariorum (Westwood) (Hemiptera: Aleyrodidae) are major crop pests throughout the world.

Characterisation of entomopathogenic fungi used in the biological control programme ofDiaphorina citriin Mexico

“…In this regard, Estrada-Valencia, Vélez, and Montoya (1997) pointed out that obtaining single-spore isolates of EPF allows for greater stability in the physiological, biochemical and molecular properties of the isolates, therefore genetically homogeneous populations. Prior to this work, the fungi used by SENASICA (CHE-CNRCB 224, 303 and 307) in the ARCOS of ACP in Mexico were formally known as I. fumosorosea; however, the morphometric evaluation carried out in this study, based on the size of the conidia and phialides, reassigned them as I. javanica, similar to that reported by Cabanillas, de Leon, Humber, Murray and Jones (2013), and by Scorsetti et al (2008). Other features that allow differentiation between the two species are the coloration of colonies; I. javanica on SDA is white at the beginning turning to brownish-grey as the culture matures, while colonies of I. fumosorosea on the same culture medium are bright pink which is attributed to the conidia.…”

“…There are reports of fungi associated with D. citri, such as Paecilomyces javanicus, which was reclassified within the genus Isaria and named Isaria javanica (Luangsa-ard, Hywel-Jones, Manoch, & Samson, 2005;Yang et al, 2006). This species has also been described as a pathogen of Lepidoptera, Coleoptera (Samson, 1974;Shimazu & Takatsuka, 2010) and the greenhouse whitefly of the order Hemiptera (Scorsetti, Humber, De Gregorio & López-Lastra, 2008). Furthermore, the fungus Metarhizium anisopliae (Metschnikoff, 1879; Sorokin, 1883) is a species with a large and diverse range of hosts, including within the order Hemiptera (Torres de la Cruz, Cortez-Madrigal, Ortiz, Cappello, & de la Cruz, 2013).…”

Isaria javanica (anamorphic Cordycipitaceae) isolated from gypsy moth larvae, Lymantria dispar (Lepidoptera: Lymantriidae), in Japan

“…Other reported host insects of this fungus are Lymantria xylina (Lepidoptera: Lymantriidae; Chen et al, 2007) and Spodoptera litura (Lepidoptera: Noctuidae; Hu et al, 2007). As such, most reported host insects are lepidopterans, but Scorsetti et al (2008) reported the greenhouse whitefly Trialeurodes vaporariorum (Westwood) as a host of I. javanica. Lymantria dispar has not been reported as a host, although some species of Lymantriidae are known as a host insect.…”

Greenhouse crops protection against suctorial phytophages complex with the preparation based on the entomopathogenic fungus “Lecanicillium lecanii” (Zimm.) Zare & W. Gams

“…Zare & W. Gams makes a practical interest as a pathogen of arthopods. Literary sources identify an ability of L. lecanii to regulate the number of pest populations in protected ground (Chandler et al, 2005;Diaz et al, 2009;Patogeny..., 2001;Gurulingappa et al, 2011;Scorsetti et al, 2008;Vestergaard et al, 1995). The main advantage of this pathogen lies in the ability of a percutaneous penetration in a host organism, and, hence, a suitability for an application for the control of suctorial pests (aphids, thrips, whitefly and spider mite), which aren't susceptible to contact and intestinal insecticides action.…”