Spodoptera frugiperda a new invasive pest_SSNAIK_AGCJGL_PJTSAU
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The document discusses the identification and management of the fall armyworm, a new invasive pest affecting maize crops in Karnataka, India, with damage estimates exceeding 70%. It details the pest's biology, life cycle, and various management strategies, including the use of pheromone traps and specific insecticides. Monitoring and timely intervention are emphasized to mitigate crop damage caused by this pest.
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Spodoptera frugiperda a new invasive pest_SSNAIK_AGCJGL_PJTSAU
- 1. WELCOME Spodoptera frugiperdaA new Invasive Pest -Succeeding to the recent Tomato Pin Worm Rugose Spiralling White fly Mr.S.SRINIVASNAIK ASSISTANT PROFESSOR DEPARTMENT OF ENTOMOLOGY PJTSAU
- 2. NEW INVASIVE/ALIEN INSECT Identification & Damage assessment Based on the Roving Survey: 9 July to 12 July 2018 ICAR-NBAIR team (Dr A. N. Shylesha, Principal scientist) Chikkaballapur- Karnataka on maize Damage estimation > 70 % Different locations also: Hassan, Belur & Shimoga Dr S. K. Jalali and team molecular confirmation The fall armyworm is native to the tropical region of the western hemisphere from the United States to Argentina In 2016, it was recorded in Africa causing serious damage on maize crop
- 3. DIFFERENTIATION Spodoptera litura Noctuidae: Lepidoptera Spodoptera frugiperda Noctuidae: Lepidoptera
- 4. DIFFERENTIATION Chilo partellus Crambidae: Lepidoptera Spodoptera frugiperda Noctuidae: Lepidoptera
- 5. BIOLOGY/LIFE CYCLE Egg laying occurs on the inner side of the whorl and also on the under surface of the leaf in in a mass -89 eggs arranged in layers/patch First instar larva is greenish in colour with black head while the final instars are with dark grey head and dull grey body with white subdorsal and lateral white lines. The mature larva is with a white inverted “Y” mark on the head and with distinct black spots on the body. Arrangement pattern of black spots is square on 8th and trapezoidal on 9th segment
- 7. A) Young larva leaving silvery transparent membrane B) Larva feeding inside whorl with faecal matter C&D) tassel feeding by larvae; E & F) Irregular holes on the leaves SYMPTOMS OF DAMAGE
- 8. DIFFERENTIATION-DAMAGE Spodoptera frugiperda Noctuidae: Lepidoptera Chilo partellus Crambidae: Lepidoptera Shot holes Irregular cuttings
- 9. MANAGEMENT Monitoring 1.Erection of the pheromone traps @ 4/acre for adults Knee High Stage 2.Carbofuran 3G @ 4 kg/ac in leaf whorls 3.Put a half handful of wood ash or fine sand in the whorl of the attacked plants 4.Spray any of the a)Chlorpyriphos 20EC @ 2 ml/litre (Incidence is less <5%) b) Chlorantraniliprole 18.5 SC @ 0.3 ml/litre C) Spinosad 45.0% SC @ 0.4 ml/litre d) Emamectin benzoate 5% SG @ 0.5 ml/litre Head high stage (Unable to carry out the spraying Poison bait technique: 5 kg: Rice bran ½ kg: Jaggery ½ kg/litre: Chlorpyriphos 50 EC/Carbaryl 50 WP
- 10. As it is falls under the Noctuidae and comes under cut worms group, more over it attacking the field crop, we can save the crop by proper monitoring and applying recommended chemicals at right stage T H A N K Y O U FALL ARMY WORM/CUT WORM : Accepted Common name of the pest internationally MAKKA LADDA PURUGU: The most preferred host is Maize and it belongs to the Noctuidae family resembling the tobacco caterpillar, hence in our vernacular language it is calling as MAKKA LADDA PURUGU also Farming community!