What are the main diseases of coffee trees | Analysis of the harm of coffee leaf rust to coffee growth

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Coffee is a kind of crop and a popular drink with unique flavor, but as an agricultural product, coffee can not avoid the harm caused by diseases and insect pests-leaf rust. Leaf rust is a major disease in the growth of coffee trees, especially for Arabica, which reduces the yield of Arabica beans every year because of this disease. do you know about leaf rust?

Leaf rust is the most destructive disease in the world.

In 1861, a British expedition discovered on the shores of Lake Victoria in East Africa.

It was popular in Asia and Sri Lanka in 1868.

It spread to coffee producing countries in Asia and Africa in 1966.

Discovered in the state of Bahia in northern Brazil in 1970

Swept the coffee plantations of the American continent for 14 years.

Resulting in a 30% loss in the production of small-grain coffee.

Coffee was introduced into Taiwan in 1884

In 1892, French missionaries moved coffee from Vietnam to Binchuan County in Yunnan Province.

Hainan began to grow coffee in 1908

Leaf rust was first discovered in Taiwan in 1922.

Coffee was developed vigorously in Yunnan from 1950 to 1960, and leaf rust occurred seriously.

In 1984, leaf rust broke out in a large area of Lujiang Dam in Baoshan, resulting in a yield loss of 30%.

The disease is common in coffee producing areas in China, especially in hot and humid areas, where there are many fruits, the trees are older and the plants with weak trees are the most serious.

Harm of Leaf Rust to Coffee growth

Coffee rust is relatively common in Africa, the near East and India, Asia, and Australasia. The symptoms are shown in small yellow oil spots on the surface of the leaves, then expand into bright orange or even red spots, and finally turn brown spots with yellow edges.

The disease can lead to a reduction in coffee production and a scarcity of raw materials due to leaf rust.

In particular, agricultural scientists in Mexico predict that half of the world's coffee will be extinct by 2050, and the culprit is coffee leaf rust.

The disease, which grows in a warming climate, is spreading in Central America, where diseased coffee plants lose nourishment and eventually turn yellow and die, while Arabica coffee beans, the world's leading high-quality coffee variety, are susceptible to the disease. this variety of coffee beans usually accounts for about 60% of the total output.

It is unacceptable that the disease will also affect the global coffee economy, causing a decline in coffee futures. There will be a "quantity reduction and price rise" phenomenon of coffee beans in the world, and the international price of coffee beans will increase by about 20% a year in the next few years. These coffee processing enterprises have obviously begun to worry about adverse factors such as natural climate, diseases and insect pests, and began to resolve them.

Leaf rust is one of the main diseases in the growth process of coffee trees, which seriously harms the healthy growth of coffee trees and the yield of coffee beans, and is the main reason for the rise of global coffee prices. Cherish the hard-won cup of coffee!

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