Tikka Disease (Groundnut Leaf)
Cercospora arachidicola
Basic Details
Description
Taxonomy
Features
Translations
Basic Details
NameTikka Disease (Groundnut Leaf)
DescriptionTikka disease causes dark, circular spots on groundnut leaves, leading to severe leaf drop. Identify yellow halos on brown spots early to prevent small, shriveled pods.
TypeFungus
FamilyMycosphaerellaceae
GenusCercospora
Taxonomy & Features
PhylumAscomycota
SubphylumPezizomycotina
ClassDothideomycetes
OrderCapnodiales
Features
- A serious fungal disease of groundnut (peanut) caused by Cercospora arachidicola (early spot) and Cercosporidium personatum (late spot)
- Early leaf spot (Tikka) appears as small, sub-circular, dark brown lesions on the upper leaf surface, typically surrounded by a bright yellow halo
- Late leaf spot appears as smaller, darker, more circular spots without a yellow halo; these spots are often found on the underside of the leaf
- As the disease progresses, the spots enlarge and coalesce, eventually causing the entire leaf to turn yellow, wither, and drop (defoliation)
- Premature defoliation significantly reduces the plant's capacity to produce food, leading to fewer pods and shriveled, low-quality seeds
- The fungus can also attack the petioles and stems, producing elongated dark lesions that further weaken the plant
- Pathogen overwinters in infected crop debris on the soil surface. Spores are spread by wind and splashing rain
- High humidity, frequent dews, and warm temperatures (25-30°C) are highly favorable for disease development
- Prevent by rotating groundnut with crops like pigeon pea or sunflower. Remove and destroy diseased plant debris after harvest
- Seed treatment with fungicides (like carbendazim) and foliar sprays during the growing season are effective control measures
Names in Different Languages
Latin / ScientificCercospora arachidicola
English (Alternate)Groundnut leaf spot
Hindiटिक्का रोग (Tikka rog)
Tamilதிக்கு நோய் (Thikku noy)
Teluguటిక్కా ఆకు మచ్చ తెగులు (Tikka aku machha tegulu)
Malayalamനിലക്കടലയിലെ ടിക്ക രോഗം (Nilakkaḍalayile ṭikka rōgaṃ)
Kannadaಕಡಲೆಕಾಯಿಯ ಟಿಕ್ಕಾ ರೋಗ (Kaḍalekāyiya ṭikkā rōga)
Sanskritतिक्क-रोग (Tikka-roga)
Bengaliাবাদাম এর টিক্কা রোগ (Badam er tikka rog)
Frenchcercosporiose de l'arachide
Russianцеркоспороз арахиса (tserkosporoz arakhisa)
Spanishmancha foliar del cacahuate
GermanTikka-Krankheit
