Coffee Farming | Coffee Plant Pests and Diseases

Just as all agricultural crops suffer from pests and diseases, the coffee plant can get attacked as well. In this article, we’ll get to know the various pests and diseases that affect the normal growth of the coffee plant.

DISEASES

1. Fungal Diseases

There can be many fungal diseases that can attack coffee plants such as: algal leaf spot, bark disease, berry blotch, leaf spot, coffee berry disease, coffee rust and warty berry.

– Coffee leaf rust (Hemileia vastatrix) is a type of fungal disease that attacks coffee leaves. Its color varies from yellow to orange. It was first documented in Kenya in the 1800s. It has now been known to almost every susceptible coffee farm worldwide.

– Leaf and berry blotch (Cercospora coffeicola)

The cercospora coffeicola fungus attacks both the leaves and the coffee berry. This fungal disease caused defoliation as well as damage to the coffee berry. Leaves that are infected can show brown spots with grayish centers.

The green berries can have brown sunken lesions and also grayish centers.

2. Parasitic and Viral Diseases

A parasitic disease is called a root knot while a viral disease is called a blister spot.

3. Bacterial Diseases

Bacterial blight (Pseudomonas syringae) is one type of plant disease caused by bacteria. These are water-soaked spots on leaves which dry out over time and become brown and necrotic with yellow halos.

PESTS

1. Black twig borer (Xylosandrus compactus Eichhoff)

At first, it was the all-time nemesis of Robusta coffee, but as it spread worldwide, it has come to attack Arabica coffee as well. They damage the coffee plant by boring its branches and twigs.

2. Coffee Borer Beetle

The coffee borer beetle is a tiny black beetle that bores into the coffee fruit where it lays eggs in the seed endosperm.

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