Identification and Promotion of Natural Enemies Against Insect Pests in a Jatropha Curcas

Identification and Promotion of Natural Enemies Against Insect Pests in a Jatropha Curcas

Identification and promotion of natural enemies against insect pests in a Jatropha curcas (L.) plantation in south-central Madagascar J ATROG REEN Sustainable Energy Madagascar Dipl.-Biol. Alina Nasibullina, MSc.agr. Dr. Jens Poetsch (JatroSolutions GmbH, Germany) Prof. Dr. Claus P. W. Zebitz (Department of Phytomedicine, University of Hohenheim, Germany) ¾ Introduction Jatropha curcas (L.) Major pests of J. curcas Pest control ¾ Methodology Study site Schedule Intercrops Field design Pests and their predators Rolls of intercrops/habitats ¾ Conclusions Department of Phytomedicine 29/09/2010 2 University of Hohenheim availability of CO2 neutral fuel→ mitigation of climate change Department of Phytomedicine 29/09/2010 3 University of Hohenheim Department of Phytomedicine 29/09/2010 4 University of Hohenheim Class: Insecta Order: Lepidoptera Family: Pyralidae Genus: Pempelia Scientific name: Pempelia morosalis (Saalm Uller) ¾ specific to J. curcas (leaves, flowers, fruits) ¾ exist: India; Madagascar ¾ developmental period (egg → adult): 42.34 days ¾ sex ration (♂: ♀): 1.2 : 1 ¾ larva: 1.0-1.2 cm length Department of Phytomedicine 29/09/2010 5 University of Hohenheim Department of Phytomedicine 29/09/2010 6 University of Hohenheim Madagascar – Capital: Antananarivo – Area: 587.041 km2 – Population: 20.653.556 Department of Phytomedicine 29/09/2010 7 University of Hohenheim Fenoarivo – Population: 2147 –Clime: Aw – Precipitation: 600-1000mm p.a. – Annual average temperature: +26°C – Rivers: Fenoarivo, Zomandao – Vegetation: grass savannah – Crops: cassava, groundnut, maize, rice Department of Phytomedicine 29/09/2010 8 University of Hohenheim Jatropha plantation – ca. 21 ° 44 'S Lat and 46 ° 19' E Long – soil: Ferric Luvisol – cultivation start: August- September 2006 – spacing of plants: 4x2m Department of Phytomedicine 29/09/2010 9 University of Hohenheim Department of Phytomedicine 29/09/2010 10 University of Hohenheim Department of Phytomedicine 29/09/2010 11 University of Hohenheim J. curcas C. pepo L. albus C. sativum A. hypogaea; B. perennis; B. m m juncea; C. chamaecrista; 4 2 A. hypogaea H. tuberosus H.annuus; T. majus H. annuus m J. curcas 2 28 m C. pepo L. albus A. hypogaea; B. perennis; B. m C. sativum m juncea; C. chamaecrista; 2 4 A. hypogaea H. tuberosus H.annuus; T. majus H. annuus J. curcas 12 m12 m12 m 24 m24 m24 m PC 1 (row intercropping) PC 2 (row intercropping) PC 3 (mixed intercropping) Department of Phytomedicine 29/09/2010 12 University of Hohenheim ¾ annual/perennial ¾ row/mixed intercropping ¾ existence of legumes Department of Phytomedicine 29/09/2010 13 University of Hohenheim Name of crop Pest Predator Aphids (Aphis craccivora Koch) Ladybird (Coccinellidae ) Arachis hypogaea Grass-/Leafhoppers Wasp (Trichogrammatidae ) Grass-/Leafhoppers Cucurbita pepo Ladybird (Coccinellidae ) Grass-/Leafhoppers ? Spider (Peucetia madagascariensis ) Helianhtus annuus Wasp (Trichogrammatidae ) Ladybird (Coccinellidae ) Helianthus tuberosus ? Spider (Peucetia madagascariensis ) Wasp (Trichogrammatidae ) Grass-/Leafhoppers Leaf miner (Stomphastis thraustica ) ? Spider (Peucetia madagascariensis ) Mealybug (Pseudococcidae ) Ladybird (Coccinellidae ) Jatropha curcas ? Diptera Jatropha leaf webber (Pempelia mororsalis) ? Spider (Peucetia madagascariensis ) Wasp (Trichogrammatidae ) Lupinus albus Grass-/Leafhoppers Department of Phytomedicine 29/09/2010 14 University of Hohenheim Class: Arachnida Order: Araneae Family: Oxyopidae Genus: Peucetia Scientific name: Peucetia madagascariensis (Vinson, 1863) ¾ diurnal hunting spiders ¾ exist: Madagaskar (endemic) ¾ habitat: shrubs vegetation ¾ hight (♂ / ♀): 8-18 / 14-30 mm ¾ 1 generation a year / 1 egg sac ¾ predation of: Diptera; Lepidoptera Department of Phytomedicine 29/09/2010 15 University of Hohenheim Department of Phytomedicine 29/09/2010 16 University of Hohenheim Department of Phytomedicine 29/09/2010 17 University of Hohenheim Department of Phytomedicine 29/09/2010 18 University of Hohenheim Department of Phytomedicine 29/09/2010 19 University of Hohenheim Questions?Questions? Department of Phytomedicine 29/09/2010 20 University of Hohenheim.

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