Pests of Green manures daincha,sunhemp.pptx

667 views 19 slides Jul 31, 2024
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About This Presentation

Pests of green manures


Slide Content

Pests of Green Manures BY PRASAD P 2021004079

Pests Of Sunhemp

Hairy caterpillar, Utetheisa pulchella ; Erebidae ; Lepidoptera Distribution: India, Srilanka , Africa, Europe, Phillippines , Malaysia, Australia Symptoms: Defoliation of plants Nature of damage: Fees on leaves and contents of the developing pods

Eggs • Laid on the margin of leaves, EP : 3-5 D Larva • Hairy caterpillar, brown head • Yellow lines on dorsal & dorsa-lateral sides with black stripes and orange patches • Long, body spotted with dark, white, hairs arising on warts & scattered LP:20-25D Pupa Pupates in leaf fold or soil. PP: 7-10 D Adult • Red and black spots on white forewings • White hind wings with marginal dark blotches

Hairy caterpillar, Argina cribraria , A. syringa Erebidae ; Lepidoptera Distribution: Important pest in south India and all over India Symptom: Defoliation Eggs: Laid in groups on leaves- EP: 2-3 D Larva: Feeds on leaves: LP: 18-21 D Hairy caterpillar, black transverse marking Pupa: Pupates in plants or surface of soil Adult: A . cribraria - Orange coloured wings with black spots and patches A . syringa - Crimson coloured moth with black spots on reddish brown wings

Flea beetle, Longitarsus belgaumensis Chrysomelidae ( Alticidae ); Coleoptera Distribution: All over India Symptom: Adult – minute holes on leaves Grub – feeds on roots by mining Eggs: Laid on soil EP: 6-7 D Grubs: Yellowish in colour GP: 12-14 D Pupa: Pupation in earthen cocoon PP: 10-12 D Adults: Yellowish brown- small beetle with enlarged hind femur

Sunhemp Mirid , Ragmus importunitas Miridae ; Hemiptera Minute chlorotic spots, yellowing of leaves Nymphs and adults suck the sap from tender leaves Severe attack cause death of plants Adult is greenish bug

Stem borer, Enarmonia tricentra Eucosmidae ; Lepidoptera Larva bores stem, cause swelling Larva is pale white, dark brown head, prothoracic shield turn pinkish red Adult is small grayish brown moth

Pests Of Sesbania

Sesbania stem borer, Azygophleps scalaris ; C ossidae ; Lepidoptera Host range: Sesbania and Daincha Symptoms: Larva bores- feeding inside- plants die Fecal matter accumulating on entry hole Eggs : Laid in groups-leaves. EP: 6 D. Larva: Stout build body, robust in size, 7 cm long Light brown with reddish brown head Pupa: Pupation inside stems PP: 14-15 D Adults : Sluggish yellow brown leopard moth Adult lays up to 2000 eggs

Stem weevil, Alcidodes bubo Curculionidae , Coleoptera Symptoms: Drying of terminal branches or whole plant Lodging of plants during monsoon Numerous bore holes and swelling Apodous grub inside the stem Eggs : Laid in stem Grub: Apodous whitish grub Pupa: Pupation inside stems PP: 14-15 D Adults: Reddish brown, white transverse mark in elytra

Pests Of Dainch a

Green semilooper , Pericyma glaucinans Noctuidae , Lepidoptera Symptoms: Defoliation of plants, leaflet damage Larva: Pale green, broad yellow lateral stripes Adults: D ark brown with black lines Nature: Caterpillar feeds on the leaflets remaining along the ribs of the leaves

Green looper , Semiothisa pervolgata Geometridae , Lepidoptera Symptoms: Defoliation of plants, leaflet damage Egg: Oval greenish egg laid singly on leaves Larva: Pale green, white lines. When fully grown, Pink with dorsal horizontal violet patches on abdomen Pupa: Pupates in the soil Adults: White, three dark lines and spots on wings

Brown looper , Hyposidra successaria Geometridae , Lepidoptera Symptoms: Defoliation of plants, leaflet damage Egg: Deposited in clusters Larva: Reddish brown with spots Pupa: Pupates in the soil Adults: Reddish in colour with faint lines

Sulphur butterfly, Eurema hecabe Pieridae ; Lepidoptera Defoliation by larva Larva green with white lateral lines Adult is yellow butterfly with black marks

Mottled emigrant, Catopsilia pyranthe , C.crocale , C.pomona Pieridae , Lepidoptera Symptoms: Defoliation of the leaflets Larva: Greenish caterpillar with lateral yellow stripes and black dots Adults: Male forewing chalky white or greenish with apical and terminal black border Female-black markings broader

Leaf webber , Grammodes stolida Noctuidae ; Lepidoptera Distribution : All over India Host range : Daincha and sesbania Symptom : Webbing of leaves and defoliation Eggs : Laid singly on shoots- EP: 2-4 D Larva : Feeds on leaves: LP: 15-22 D Pupa : Pupates in soil or webbed leaves. PP: 10-12 D Adult: Forewing with large black patch

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