Tag Diseases of Vegetables

Tomato Yellow Leaf Curl Virus (TYLCV): Physiology, Management Practices, and Control Measures in the Context of Nepal

Symptomatic tomato plant infected with TYLCV. Note the leaf curl.

Tomato Yellow Leaf Curl Virus (TYLCV) is a devastating plant pathogen causing significant economic losses in tomato production worldwide, including in Nepal. The virus belongs to the genus Begomovirus within the family Geminiviridae. It primarily affects solanaceous crops, with tomatoes…

Read MoreTomato Yellow Leaf Curl Virus (TYLCV): Physiology, Management Practices, and Control Measures in the Context of Nepal

Root-Knot Nematode in Vegetables and Spices: Disease Cycle and Management in Nepal

https://extension.usu.edu/vegetableguide/tomato-pepper-eggplant/root-knot-nematodes

Introduction Root-knot of vegetables, primarily caused by Meloidogyne species, are among the most destructive plant pathogens affecting a wide range of crops worldwide. In Nepal, these nematodes pose a significant threat to vegetable and spice crops, directly impacting agricultural productivity…

Read MoreRoot-Knot Nematode in Vegetables and Spices: Disease Cycle and Management in Nepal

Clubroot of Brassicas: Understanding Plasmodiophora brassicae, Its Disease Cycle, and Effective Management in Nepal

Gerald Holmes, Strawberry Center, Cal Poly San Luis Obispo, Bugwood.org
Clubroot disease, which affects cruciferous plants like cabbage and cauliflower, is widespread globally and can cause significant damage to susceptible varieties. Once a field becomes infested with the clubroot pathogen, it remains contaminated indefinitely, making it unsuitable for future crucifer cultivation.
Read MoreClubroot of Brassicas: Understanding Plasmodiophora brassicae, Its Disease Cycle, and Effective Management in Nepal

Alternaria Leaf Spot: A Comparative Study of Alternaria brassicicola and Alternaria brassicae in the Context of Nepal

Conidia of A. brassicae

Introduction Alternaria leaf spot is a common and destructive disease affecting cruciferous crops, including cabbage, cauliflower, broccoli, and mustard. This disease is caused primarily by two fungal species: Alternaria brassicicola and Alternaria brassicae. Both pathogens are closely related but differ…

Read MoreAlternaria Leaf Spot: A Comparative Study of Alternaria brassicicola and Alternaria brassicae in the Context of Nepal