Discover published sets by community

Causal organism: Various fungi in the genus Puccinia. Symptoms: Pustules of red or orange spores on leaves or stems.

Causal organism: Diplocarpon rosae. Symptoms: Circular black spots on leaves, yellowing foliage.

Causal organism: Erwinia amylovora. Symptoms: Wilting and blackening of shoots, oozing cankers on branches.

Causal organism: Various oomycetes. Symptoms: Yellow patches on leaves, white to purple fuzz under leaves.

Causal organism: Phytophthora spp. Symptoms: Stunted growth, wilting, chlorosis, root decay.

Causal organism: Venturia inaequalis. Symptoms: Olive green to black spots on apple leaves and fruit, fruit deformities.

Causal organism: Various fungi in the order Erysiphales. Symptoms: White, powdery spots on leaves and stems.

Causal organism: Fusarium oxysporum. Symptoms: Yellowing and wilting of leaves, often starting with the lower leaves.

Causal organism: Verticillium dahliae and Verticillium albo-atrum. Symptoms: Wilted, yellowing leaves, often one-sided wilting.

Causal organism: Xanthomonas citri. Symptoms: Raised lesions on fruit, leaves, and twigs, yellow halos around lesions.

Causal organism: Ustilago maydis. Symptoms: Tumor-like galls on corn ears, leaves, or tassels, filled with black powdery spores.

Causal organism: Banana bunchy top virus (BBTV). Symptoms: Stunted growth, bunchy growth at the top, dark green streaks on veins.

Causal organism: Phytophthora infestans. Symptoms: Dark blisters on leaves and fruit, plant wilting.

Causal organism: Ophiostoma ulmi and Ophiostoma novo-ulmi. Symptoms: Yellowing and wilting leaves, branch dieback.