for Plant Pathogens and Diseases Control


Here is no curing any of these: one must be quick to recognize these diseases and then discard the affected plants and protect the rest.

Margery Daughtrey

Senior Extension Associate, LIHREC of Cornell University

Global Status of Fungicides

Plant diseases are spread every year, the pathogens are infecting, destroying leaves and roots. Farmers have no choice and must discard the affected crop and plants. The Long Island HREC of Cornell University warns that there are four pathogens in particular growers should be mindful in 2017.

According to the UN Comtrade Database, the total global export values of fungicides (HS.Code 380892) at $9.12 billion dollars in 2015. The total export volumes at 991,188 tons. The global import status of fungicides at $9.10 billion dollars and 877,879 tons. China owned the export market share 4.76%, rose by 12.22% CAGR from 2007 to 2015. The global trade date has shown the strong market trend, especially in today, eco-friendly and bio-based sources are the key market labels.

by $ Million




2017 Numbers of Registered Fungicide in China (Except of special administrative region and Taiwan region)

* 2017 Numbers of Registered Fungicide in China (Except of special administrative regions and Taiwan region)

The registration of fungicides by MOA of China also shows a high speed on driving increasing demands. Numbers of 9,432 products were registered on ICAMA. Wettable powders (WP) is the key formulation format a 38.2% market share. And only a third of registered products are composite formulas, two third of formulas are the single dose at 65.13%. The registration situation in China also brings new issues that too many agriculture ingredients of fungicide focus on field crop and research & development on formula should increase input at more range of areas.

Challenge of Fungicide Resistance

In China, the registered fungicides focus on field crops, such as rice, wheat, peanut, cotton and rape. Field crop owned a 33.9% market share on the target crop application. 65% of formulas are the single dose and 35% of formulas are composited.

There is a case study, Downy mildew disease is easy spreading. In 2011, impatiens downy mildew is reported in MA, CA, IL, IN, NY, MN and WI. And appeared again in January 2012, the disease was seen on landscape impatiens in Florida. This destructive foliar disease is causing complete defoliation or plant collapse and had been confirmed in 33 states in the US. In early November 2012, the new cycle of disease was being seen in south Florida and signalling the potential start of the 2013 season.


At that time, the fungicides, such as Protect DF™, FenStop™, Adorn™ were the fungicides which effected strongest preventive efficacy. The products were usually composited by the active ingredients, such as mancozeb, fenamidone, fluopicolide. The compound is of excellent solubility and low toxicity but has toxicity to fish and human skin. Some ingredients easy being resolved into toxic gases.

Over the long term, as the policies and legislation trend to more and more strict on the environment protecting, and the diseases resistance, appear years and years. Bio-based monomers would be the key part of formulas, mixed with synthetic active ingredients. It is a new way to agriculture disease control.


NOTES. Protect DF™ is a trademark of Nufarm. FenStop™ is a trademark of OHP, Inc.. Adorn® is a registered brand of VALENT.

The main active ingredients of registered fungicides in China, ICAMA, 2017
Active Ingredient Numbers of Registered Registered, %
Mancozeb 430 16%
Thiophanate Methyl 350 13%
Difenoconazole 322 12%
Tebuconazole 274 10%
Sulfur 250 9%
Validamycin 236 9%
Propiconazole 212 8%
Dimethomorph 201 8%
Chlorothalonil 191 7%
Prochloraz 166 6%

Terpene Based Monomers for Diseases Control & Plant Cares

Terpene-based ingredients are the newly activated monomers for biofungicide, even most of the plants contain a large number of terpenes. In usual the manufacturers would purchase pine oil and turpentine bio-based from pinus for cleaning application. Terpenes result in a strong antibacterial effect. Following this way, the researcher found that α-(L)-Terpineol (Purity 90%) can against the plant pathogens (Kaiping Lai, 2007), such like tomato bacterial wilt, against for 24 hours, the diameter of bacteriostatic circle reduced from 90.0mm to 13.3mm under 3.0 mg/ml.

Monomers were extracted from different of biosource showed the targeted antibacterial effects. Eugenol and Terpinen-4-ol from Cumin Seeds (Cuminum cyminum L.) resulted in the activated for Sclerotinia sclerotiorum, early blight, verticillium wilt and damping off disease (Linfeng Hu, 2008). Especially eugenol, against 94.17% of rape Sclerotinia sclerotiorum, 91.24% of tomato early blight, 78.48% of cotton verticillium wilt under 200 mg/L. And Terpinen-4-ol results in effects on 71.68% of rice damping-off and 77.36% wheat damping-off.

For business, terpenes as bioactive compounds have been sold on commerce products. Such as NU-FILM® 17 owned by Miller Chemical & Fertilizer, LLC, or 2BY™ and 2EY™ owned by EDEN®, Lachlan (K) Hawk® 16CS. Our individual brand, PINEYE® Emulsion has successfully applied on sunguard and wetting dispersant.

The target plant pathogens of bio-based monomers.
α-Terpineol Terpinen-4-ol α-Terpinene Eugenol
Ddowny Mildew
Damping off Disease
Powdery Mildew
Rice Blast
Leaf Spot
Venturia Inaequalis
Spotted Leaf Disease
Early Blight
Ring Spot
Fusarium Head Blight
Sclerotinia Sclerotiorum
Seedling Blight
Verticillium Wilt

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