Cashew (Anacardium occidentale)

Anthracnose (Colletotricum gloeosporioides)

Symptoms

  • The fungus infests the tender leaves, twigs and forms sunken redddish brown, water-soaked lesions.
  • On the affected region exudation of resin can be seen. The lesions enlarge and kill the shoots.
  • The tender leaves are crinkled and fruits shrivelled.
  • The infected inflorescences turn black. Repeated Infection of the terminal shoots leads to the death of the tree in course of time.

Management

  • Prune off and destroy all affected branches.
  • Spray the seedlings and plants with Bordeaux mixture (1 %).

Chemical Control

Sl.No Generic Name Trade Name Color code Dosage/litre Knapsack Sprayer (Capacity 10L) Recommendation Remarks
Dosage/acre (200 L) Dosage/hectare (500 L)
1 Hexaconazole 5 EC Contaf plus, Danzole plus, Force plus 5, Fowmox, Hexaan white, Hexadhan plus, Hexan white, Hexazole Gold, Nagarjuna Mass+, Remo, Sitara plus, Xantho Premium Blue 1 ml 10 ml 200ml 500 ml
2 Triadimefon 25 WP Bayelton Blue 1 g 10 g 200 g 500 g
3 Propiconazole 25 EC Bumper, Dhan, Pinade,Propiguard, Propik Final, Radar, Result, Tilt, Tilt Albu, Zetox Blue 1 ml 10 ml 200 ml 500 ml
4 Carbendazim 50 WP Bavistin, Benfil, Bengard, Benlate, Benmain, Bensaan, B-stin 50 WP, JK Stein 50 WP, Carben, Carziim 50, Dhanustin, Dhanustin 50 Wp, Fungiguard, Gancarzin 50, Glizim, Mintho, Tagstin, Tiara, Zoom Green 1 g 10 g 200 g 500 g
5 Copper oxychloride 50 WP Bensaan, Blitox, Blue copper, Bluetrox, Copter, Cupramar, Cuprina, Dhanucop, Fytolan, Fytox, Fytran, Fytolan, Hilcopper, Killex copper, Maincop Dhanucop, Star cop, Tagcop, Trucop Yellow 2.5 g 25 g 500 g 1250 g
6 Mancozeb 75 WP Devidayal M-45, Dhanuka M-45 Dithane, Dithane M-45, Hilthane, Hindustan M-45, Indofil M-45, Izeb M-45, Manzate, Luzen 45, Macoban M-45, Mancosaan, Mancosaan M-45, Manzeb 75 WP, Maneb, Manzane, M-Guard, Savour M-45, Tata M-45, Eurofil -NT, Uthane M-45, Veera, Zinthane Yellow 3 g 30 g 600 g 1500 g
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Extremely Toxic
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Highly Toxic
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Moderately Toxic
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Slightly Toxic