Chlorothalonil

Chlorothalonil and protective fungicide

Chlorothalonil and Mancozeb are both protective fungicides that came out in the 1960s and were first reported by TURNER N J in the early 1960s. Chlorothalonil was put on the market in 1963 by Diamond Alkali Co. (later sold to ISK Biosciences Corp. of Japan) and then sold to Zeneca Agrochemicals (now Syngenta) in 1997. Chlorothalonil is a protective broad-spectrum fungicide with multiple action sites, which can be used for the prevention and treatment of lawn foliar diseases. The chlorothalonil preparation was first registered in the United States in 1966 and used for lawns. A few years later, it obtained the registration of potato fungicide in the United States. It was the first fungicide approved for food crops in the United States. On December 24, 1980, the improved suspension concentrate product (Daconil 2787 Flowable Fungicide) was registered. In 2002, the previously registered lawn product Daconil 2787 W-75 TurfCare expired in Canada, but the suspension concentrate product has been used to this day. On July 19, 2006, another product of chlorothalonil, Daconil Ultrex, was registered for the first time.

The top five markets for chlorothalonil are in the United States, France, China, Brazil, and Japan. The United States is the largest market. The main application crops are fruits, vegetables and grains, potatoes, and non-crop applications. European cereals and potatoes are the main crops for chlorothalonil.

Protective fungicide refers to spraying on the surface of the plant before the plant disease occurs to prevent the invasion of pathogens, so that the plant can be protected. Such protective fungicides were developed earlier and have been used for the longest time.

Chlorothalonil is a broad-spectrum fungicide with protective multi-action sites. It is mainly used for foliar spraying to prevent and control various diseases of various crops such as vegetables, fruit trees and wheat, such as early blight, late blight, downy mildew, Powdery mildew, leaf spot, etc. It works by inhibiting spore germination and zoospore movement.

In addition, chlorothalonil is also used as a wood preservative and paint additive (anti-corrosion).