A compound fungicide for preventing and treating wheat scab and its application

Abstract

The invention discloses a compound bactericide for controlling wheat scab and application thereof. The compound bactericide comprises phenamacril and ipconazole. A weight ratio of the phenamacril to the ipconazole is 1-40:40-1. The compound bactericide is synergic for inhibiting the growth of Gibberella zeae. The invention also discloses application of the compound bactericide in controlling wheat scab, the effect of controlling wheat scab can be significantly improved, the resistance of Gibberella zeae to the phenamacril can be delayed, wheat powdery mildew, rust disease and banded sclerotial blight are also treated, pesticide usage is greatly reduced, the cost is reduced, environmental pollution and pesticide residue are reduced, and the compound bactericide is environment friendly. The compound bactericide has important practical significance to the increase in social, economic and economic benefits.

Description

technical field

[0001] The invention belongs to the technical field of pesticides, in particular to a compound fungicide for preventing and treating wheat scab and its application. Background technique

[0002] Wheat is the most important cereal cultivated crop in the world, and it is also an important food crop in my country. Scab, powdery mildew, sheath blight, rust and leaf blight are important fungal diseases that threaten wheat production, seriously affecting the yield and quality of wheat. In particular, wheat head blight caused by Fusarium not only causes devastating yield loss, but also produces large amounts of deoxynivalenol (DON) and zearalenes in the infected kernels. Toxins such as ketone (Zearalenone) seriously affect food security and threaten the health of humans and animals.

[0003] Wheat scab is an ascomycete disease of bud rot, seedling dieback and ear rot / ear dieback that can be caused by a variety of Fusarium fungi or Fusarium spp. Its pathogens incl...

Examples

Embodiment 1

[0024] Example 1: 20% cyclostrobin · cloconazole wettable powder

[0025] Cyclostrobin 4%, Paconazole 16%, NNO-1 1%, Pull open powder 3%, Sodium dodecylbenzene sulfonate 2%, Attapulgite 30%, The rest is supplemented by light calcium carbonate to 100%. The above components were thoroughly mixed, pulverized by a sand mill and sieved through a 300-mesh sieve to obtain a 20% cyclostrobin-conconazole wettable powder.

Embodiment 2

[0026] Example 2: 60% cyclostrobin · cloconazole wettable powder

[0027] Cyclostrobin 40%, Paconazole 20%, NNO-1 1%, Pull open powder 3%, Sodium dodecylbenzene sulfonate 2%, Attapulgite 30%, The rest is supplemented by light calcium carbonate to 100%. The above components were thoroughly mixed, pulverized by a sand mill and sieved through a 300-mesh sieve to obtain a 60% cyclostrobin-conconazole wettable powder.

Embodiment 3

[0028] Example 3: 40% cyclostrobin·canconazole wettable powder

[0029] Cyclostrobin 20%, Paconazole 20%, NNO-1 1%, Pull open powder 3%, Sodium dodecylbenzene sulfonate 2%, Attapulgite 30%, The rest is supplemented by light calcium carbonate to 100%. The above components were thoroughly mixed, pulverized by a sand mill and passed through a 300-mesh sieve to obtain a 40% cyclostrobin-conconazole wettable powder.

technical field

[0001] The invention belongs to the technical field of pesticides, in particular to a compound fungicide for preventing and treating wheat scab and its application. Background technique

[0002] Wheat is the most important cereal cultivated crop in the world, and it is also an important food crop in my country. Scab, powdery mildew, sheath blight, rust and leaf blight are important fungal diseases that threaten wheat production, seriously affecting the yield and quality of wheat. In particular, wheat head blight caused by Fusarium not only causes devastating yield loss, but also produces large amounts of deoxynivalenol (DON) and zearalenes in the infected kernels. Toxins such as ketone (Zearalenone) seriously affect food security and threaten the health of humans and animals.

[0003] Wheat scab is an ascomycete disease of bud rot, seedling dieback and ear rot / ear dieback that can be caused by a variety of Fusarium fungi or Fusarium spp. Its pathogens incl...

Examples

Embodiment 1

[0024] Example 1: 20% cyclostrobin · cloconazole wettable powder

[0025] Cyclostrobin 4%, Paconazole 16%, NNO-1 1%, Pull open powder 3%, Sodium dodecylbenzene sulfonate 2%, Attapulgite 30%, The rest is supplemented by light calcium carbonate to 100%. The above components were thoroughly mixed, pulverized by a sand mill and sieved through a 300-mesh sieve to obtain a 20% cyclostrobin-conconazole wettable powder.

Embodiment 2

[0026] Example 2: 60% cyclostrobin · cloconazole wettable powder

[0027] Cyclostrobin 40%, Paconazole 20%, NNO-1 1%, Pull open powder 3%, Sodium dodecylbenzene sulfonate 2%, Attapulgite 30%, The rest is supplemented by light calcium carbonate to 100%. The above components were thoroughly mixed, pulverized by a sand mill and sieved through a 300-mesh sieve to obtain a 60% cyclostrobin-conconazole wettable powder.

Embodiment 3

[0028] Example 3: 40% cyclostrobin·canconazole wettable powder

[0029] Cyclostrobin 20%, Paconazole 20%, NNO-1 1%, Pull open powder 3%, Sodium dodecylbenzene sulfonate 2%, Attapulgite 30%, The rest is supplemented by light calcium carbonate to 100%. The above components were thoroughly mixed, pulverized by a sand mill and passed through a 300-mesh sieve to obtain a 40% cyclostrobin-conconazole wettable powder.

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