In April 2016, the National Agro-Tech Extension and Service Center (NATESC) made a prediction for the wheat head blight occurrence in China.

Wheat head blight is a typical climatic disease. This year, the disease is predicted to strike heavily, given massive fungi in fields, low resistance of major wheat varieties and repetitive rainfall from mid-April to May in frequently stricken areas. The occurrence area will amount to 6.67 million+ ha (100 million+ mu) and the specific control & prevention area to 13.33 million+ ha/time (200 million+ mu/time).

In particular, this disease is predicted to strike widely in wheat planting areas along the middle and lower reaches of Changjiang River, in the Changjiang-Huaihe Region and southern part of Huang-Huai area, and heavily in the northern part of Huang-Huai area.

On the whole, the occurrence of wheat head blight will be severe in 2016, in some regions even severer compared with the previous years.

Thus, the control and prevention of this disease is of great urgency now. In this context, Chinese pesticide producers can seize the great business opportunity, given the insufficient pesticides for this disease at present.

                                                    Occurrence prediction for wheat head blight in 2016

                                          
                                                Source: National Agro-Tech Extension and Service Center

Wheat is one of the four staple foods and an important kind of grain in China, whose plating area accounts for 14% of the national total of crops. It  mainly grows in Henan, Shandong, Anhui, Hebei and Jiangsu provinces.

Wheat head blight has always been one of the most serious diseases in wheat planting region, largely cutting down or even wiping out the harvest. At present, major wheat varieties in China are vulnerable to this disease. Thus, pesticide is the key to the control and prevention.

The optimum timing for control & prevention is the period from full heading to early flowering: mid- and late April in regions along the middle and lower reaches of Changjiang River and in the Changjiang-Huaihe Region, late April to early May in Huang-Huai area and southern part of North China, and early to mid-May in Northwest China.

                                                          China's wheat planting area, 2009-2014

                                                             Source: National Bureau of Statistics

                                            Top 10 wheat planting provinces (by planting area), 2014

                                                                Source: National Bureau of Statistics

According to the Institute for the Control of Agrochemicals, Ministry of Agriculture (ICAMA), as of 6 May, 2016, there have been 216 pesticide formulations registered for wheat head blight, covering 20+ active ingredients, like carbendazim, thiophanate-methyl, triadimefon, thiram, tebuconazole, prochloraz, jingangmycin, phenamacril, oligosaccharins, sulfur, chlorothalonil, hexaconazole, enostroburin, diniconazole, bacillus cereus, epoxiconazole, propiconazol, amino-oligosaccharin, benziothiazolinone, tetramycin and polyoxin B.

In particular, single and mixed formulations of carbendazim, thiophanate-methyl, triadimefon and thiram are the majority, 90% of the total registrations.

Registrations of single pesticide formulations for wheat head blight, as of 6 May, 2016

Source: Institute for the Control of Agrochemicals, Ministry of Agriculture

Registrations of binary pesticide mixtures for wheat head blight, as of 6 May, 2016

Source: Institute for the Control of Agrochemicals, Ministry of Agriculture

Registrations of ternary pesticide mixtures for wheat head blight, as of 6 May, 2016

Source: Institute for the Control of Agrochemicals, Ministry of Agriculture

This article comes from Fungicides China News 1605, CCM

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