(IPPM) in Vegetables - Vegetableipmasia.org

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Resource Manual on IPPM in Vegetable World Education Philippines, Inc. Host range: Unknown Description: This fungus infects adult whiteflies. Dead whiteflies are attached to the leaf surface by fungal structures and their wings are spread apart, exposing the abdomen on which spores are produced. Spores and hyphae are white. Name: Entomophaga sp. Host pictured: Cutworm Host range: Unknown Description: This fungus has been found infecting instar larvae of cutworms on cabbage in upland areas of Sumatra. Dead larvae have been found attached to the outer edges of the leaves. The fungus does not form an extensive growth on the outside of the larva. Freshly-killed larvae are brown and turn black and shrink after sporulation is complete. Spores are large, oval and white. Hyphomycetes The hyphomycetes or imperfect fungi are distinguished from the Entomophthorales by forming spores which are not forcibly ejected from the host. They usually form an extensive growth of hyphae on the outer surface of the host and sometimes form stalklike structures which grow out from the host. Genera and species are usually distinguished by color, shape, and arrangement of the spores, and by the presence or absence of stalk-like structures. Hyphomycetes can usually be cultured easily on artificial media. Name: Nomuraea rileyi (Farlow) Sampson Host pictured: Helicoverpa armigera, Spodoptera exigua and S. litura Host range: Mostly larvae of Lepidoptera Description: Before sporulation occurs, the dead host is covered by a thick growth of white mycelium (on Helicoverpa armigera). When sporulation occurs, the larva turns green due to a heavy accumulation of green spores (on Spodoptera exigua), on Spodoptera litura). Spores are light green and oval. 136
Resource Manual on IPPM in Vegetable World Education Philippines, Inc. Name: Hirsutella sp. Host pictured: Plutella xylostella Host range: Unknown Description: Freshly-killed cadavers have a thin layer of mycelium with tufts forming at various locations which eventually develop into grey stalks (synnemata). Spores are clear and spindle-shaped. Name: Hirsutella sp. Host pictured: Helicoverpa armigera Host range: Unknown Description: The host larva is covered with tan-colored mycelium out of which several stalk-like structures (synnemata) develop. These stalks are dark grey with white tips. Spores are formed on the surface of these stalks. This fungus is not common. Name: Hirsutella sp. Host pictured: Stenocranus bakeri Host range: Unknown Description: This fungus is one of the Hirsutella species that do not form stalks. Clear spindle-shaped spores are formed along these hyphae. Name: Beauvenia bassiana (Balsamo) Vuillemin Host pictured: Cylas formicarius Host range: Wide host range Description: B. bassiana is characterized by having white hyphae and white spores clumped together into spore balls. Name: Verticillium sp. Host pictured: Rhopalosiphum maidis Host range: Aphids, whiteflies, thrips and other insects Description: This fungus has white hyphae and white conidia. Hosts become completely covered by the hyphae and the white cylindrical spores accumulate into slime balls on the surface of this hyphal mat. 137
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Resource Manual on Integrated Produ
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Compiled and published by: World Ed
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ACKNOWLEDGM ENT World Education (IN
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1. Leaves 48 2. Flower 49 3. Fruit
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Sources 203 Part XII: Farm Record K
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Resource Manual on IPPM in Vegetabl
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Resource Manual on IPPM in Rice Wor
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