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Locust in India (slides 24)
- 1. LOCUST পঙ্গপাল Date ofpublication : 29.5.2020 Dr Tusar Kanti Ghosal 61, Sudhangshu Nagar Area : Bharat Club, Gunjabari Post & Dist. Cooch Behar State : West Bengal, India 736101 E mail : [email protected]
- 2. ORTHOPTERON INSECT Kingdom :ANIMALIA Super class : HEXAPODA (insects and non-insects having 3 pairs of legs) Class : INSECTA (insects) Sub class : PTERYGOTA (winged insects) Order : ORTHOPTERA (grasshoppers, locusts, mole crickets, true crickets, bush crickets, katydids)
- 3. Katytid Mole cricket Housecricket House cricket Locust (solitary) Long horned grasshopper Short horned grasshopper Grasshopper These are not a locust
- 4. It is nota locust..... Fore legs are raptorial or praying type Yes, it is a Praying mantis Body size : above 5 cm
- 5. It is akatytid……. //////////////////// Body size : less 4 cm
- 6. It is alsoa large brown katytid, not locust……. Body size : above 5 cm
- 7. It is aLong horned grasshopper…………….. Body size : less 4 cm.////////////////////
- 8. It is ashort horn grasshopper………… LOCUST LOCUST //////////////////// Body size : less 4 cm.
- 9. ……………..Yes, it isa solitary locust Grasshoppers and locusts are closely related insects belonging to the Acrididae family. Locusts are actually grasshoppers that is capable of becoming gregarious and migratory under optimum environmental conditions. Locust has three phases ie solitary, gregarious and transient phase. Body size : above 5 cm /////////////////////////
- 10. পঙ্গপাল, LOCUST Locust শব্দটিএসেসে Latin শব্দ locusta ,যার অর্থ lobster বা ল াকাস্ট। ছ াট শশিংস়ের শবসশষ প্রজাশি যাসের জীবন চসে ে বা ঝাাঁক বাধার পযথা়ে র্াসক। একা র্াকা অবস্থা়ে এই ঘাে ফশ িংগুস া অনপকারী, িারা েিংখ্যা়ে র্াসক কম এবিং কৃ শষর জনয শবরাট লকান আশর্থক ক্ষশি কসর না। তবে অনাবৃশির পর দ্রুি ফেস র বধথন হস এসের মশিসে র্াকা লেসরাসটাশনন িাসের মসধয আচরণগি পশরবিথ সনর েূত্রপাি কসর। ফবল িারা প্রচুর পশরমাসন ও দ্রুি জন্মোন শুরু কসর। িখ্ন িারা একসত্র র্াসক, যখ্ন িাসের েিংখ্যা লবশশ হ়ে িারা যাযাবর হস়ে পস । পঙ্গপাবলর এই মরক তিশর করার ইশিহাে বহু পুরসনা।পুরসনা শমশরী়েরা িাসের কবসর এসের এসকশে ।
- 11. ছেবরাবটানিি (Serotonin) লেসরাসটাশনন(Serotonin)বা ৫-হাইড্রশিশিপ্টাশমনহ মশিসের স্না়েুসক েিংসযাগকারী একটি শনউসরািান্সশমটার, যার রাো়েশনক নাম ৫-হাইড্রশিশিপ্টাশমন। রক্তনাশ কা়ে রক্ত প্রবাসহ এটি োহাযয কসর। এটি মানুসষর লক্ষসত্র ভা র্াকার অনুভূ শি প্রোন কসর| িাই এসক অসনকেম়ে েুখ্ানুভূ শির হরসমান ব া হ়ে।যশেও এটি হরসমান ন়ে, এটি একটি মসনাএমাইন।
- 12. Few popular locust Gardenlocust, Acanthacris ruficornis Adult Nymph Desert Locust, Schistocerca gregaria (Forskål) Migratory locust, Locusta migratoria Bombay locust, Cyrtacanthacris succincta Moroccan locust, Dociostaurus maroccanus (Thunberg) Italian locust, Calliptamus italicus (Linn. ) Australian Plague Locust, Chortoicetes terminifera (Walker)
- 13.
- 14. Behavior of locust India faced 26 locust plagues during 1964to 2020. An average,a small swarm can eat green vegitation which is equal to thirty thousand people‘s intake per day. A locust swarm of 40 million can eat dai;y the same amount of food as 03 million people can eat.
- 15. In solitary phase(low numbers and densities), locusts behave as individuals,much like grasshoppers. In gregarious phase, they form dense and highly mobile (marching) bands of hoppers and flying swarms of adults (winged locusts), which behave as an entity. Behavior of locust
- 16. Migratory locust, Locustamigratoria Linn.1758 Female adult (solitary) Female adult (solitary) Nymph (solitary)
- 17. Migratory locust, Locustamigratoria (Gregorius stage) Usually lead shy, solitary lives but when they get crowded together they become gregarious and destructive. It is reported to be solitary in India since 1927
- 18. CLASSIFICATION OF DESERT LOCUST: Kingdom: ANIMALIA Super class: HEXAPODA Class: INSECTA Sub class: PTERYGOTA Order: ORTHOPTERA (grasshoppers, locusts, crickets, katydids) Sub orders: CAELIFERA (grasshoppers, locusts, mole crickets) Family: ACRIDIDAE (short horned grasshoppers & locusts) Genus: Schistocerca Species: gregaria
- 19. India : North-WestIndia to some time East India. Pakitan : Mostly Balochistan, Sindh and Punjab states. Yemen Saudi Arabia Oman and Sudan Native homelands of Desert Locust (Schistocerca gregariain) in Asia……. Note : The locusts occurred in their traditional late summer breeding areas, the vast Thar parker, Cholistan deserts, Rajistan desert of south- western India and Thor desert of India is their home lands. Desert Locust which is present in about 30 countries during recession periods and can extend over or into parts of 60 countries during plagues.
- 20. Locust plagues inIndia India faced 26 locust plagues during 1964 to 2020. Colonial government set up a locust warning organisation in 1939 in Karachi, now in Pakistan. After that India set up a a separate surveillance organisation namly “India's Locust Warning Organisation ”1946.
- 21. Large and aggressiveswarms of desert locust have invaded more than 24 districts covering more than 50,000 hectares areas of Rajasthan, Madhya Pradesh, Uttar pradesh ,Gujarat and Punjab are badly effected till 30 th May 2020. Locust plagues in India on May 2020
- 22. BREEDING ZONE of Desertlocust, Schistocerca gregaria (Forsskal,1775) Nymph of desert Locust: Difference in the colour of solitary (green) and gregarious (black with orange spots) Adults are yellow, then pink with spots Desert Locust, Schistocerca gregaria (Forskål 1775), which is present in about 30 countries during recession periods (about 16 million square kilometers) and can extend over or into parts of 60 countries during plagues (about 29 million square kilometers)
- 23. PEST MANAGEMENT Helicopter, droneis required to search, monitoring and chemical spray at terget. Use of environmentally acceptable pesticides in locust/grasshopper control programs in Africa and Asia. Nympth swarms were controlled by spraying and baiting with Ultra Low Volume (ULV) Malathion, fenitrothion and dieldrin with the help of spraying aircraft at Thar desert. BHC dust may use at Thar to control 1st and 2nd stage hoppers. Aldrin or BHC baits were used for 3rd, 4th and 5th stage hoppers and young adults. Bendiocarb, carbaryl as bait; chlorpyrifos, carbaryl as barrier spray ; acephate on dry vegetation and propoxur as liquid spray.
- 24. My class mates(Batch 1980) namely Bikash, Tanmoy, Gama, Aktar, Kajol, Puspendu, Shelly, Mohadeb, Bimal and all others of J.B.Pur High School (Estd. 1846). This school is 2nd oldest High School of Howrah district, West Bengal, India (711408)