Application of multifunctional plant-source bactericide to control iris tectorum gray mold

Abstract

The invention relates to application of a multifunctional plant-source bactericide to control iris tectorum gray mold. The plant-source bactericide is prepared from the following compositions in parts by weight: 0.5-2 parts of radix stellerae chamaejasmes, 3-5 parts of artemisia carvifolia, 0.7-2 parts of artemisia annua, 0.3-1 part of cinnamomum camphora, 1-3 parts of tobacco leaf, 0.8-1.6 parts of glycyrrhiza uralensis, 1-3 parts of fruit of Chinese sumac, 3-5 parts of galla chinensis, 0.5-2 parts of radix sophorae flavescentis, and 0.2-0.6 part of a synergist. The plant-source bactericide has the advantages of no toxicity, low residue, no pollution, no drug resistance, relatively strong bacteriostatic activity, high selectivity and wide raw material source.

Description

technical field

[0001] The invention relates to a fungicide, in particular to the use of a multifunctional botanical fungicide for preventing and treating Botrytis cinerea. Background technique

[0002] The application of chemically synthesized pesticides has the characteristics of good control effect and fast action, and is currently one of the important means of pest control. However, a large number of long-term and irrational use of chemically synthesized pesticides, especially the application of highly toxic and high-residue pesticides, has resulted in excessive pesticide residues, polluted the environment and agricultural products, and endangered the health of humans and animals; pests and diseases have developed resistance to pesticides, reduced control effects and even killed Serious natural enemies will cause pests and diseases to rampant again and destroy the ecological balance. This is the so-called "3R" problem of chemical pesticides.

[0003] The negative effec...

Examples

Embodiment 1

[0014] Embodiment 1: According to the following steps during preparation: 1. Take by weight 0.5 part of Daphne chamaejasme, 3 parts of Artemisia annua, 0.7 part of Artemisia annua, 0.3 part of camphor, 1 part of tobacco leaves, 0.8 part of licorice, 1 part of Salt bran, 3 parts of Galla gall, and 0.5 part of Sophora flavescens are mixed; 2. The mixture in step 1 is extracted with ethanol, wherein the stirring speed in the extraction process is 210r / min, the volume concentration of ethanol is 60%, and the extraction time 28h, the extraction temperature is 75°C; 3. Filter the product obtained in step 2; 4. Distill the filtrate from step 3 at 110°C; 5. Distill the fraction of step 4 at 130°C and 0.01MPa Carry out moist heat sterilization for 21 minutes; 6. Add azone and stir evenly to obtain a botanical fungicide.

Embodiment 2

[0015] Embodiment 2: According to the following steps during preparation: 1. Take 2 parts of Daphne chamaejasme, 5 parts of Artemisia annua, 2 parts of Artemisia annua, 1 part of camphor, 3 parts of tobacco leaves, 1.6 parts of licorice, 3 parts of Salt bran, 5 parts of gallnuts, 2 parts of flavescens are mixed; 2. The mixture in step 1 is extracted with ethanol, wherein the stirring speed in the extraction process is 230r / min, the volume concentration of ethanol is 60%, and the extraction time 42h, the leaching temperature is 80°C; 3. Filter the product obtained in step 2; 4. Distill the filtrate from step 3 at 115°C; Carry out moist heat sterilization for 30 minutes; 6. Add synergistic phosphorus and stir evenly to obtain a botanical fungicide.

Embodiment 3

[0016] Embodiment 3: According to the following steps during preparation: 1. Take by weight 1.4 parts of Daphne chamaejasme, 4 parts of Artemisia annua, 1.3 parts of Artemisia annua, 0.7 part of camphor, 2 parts of tobacco leaves, 1.2 parts of licorice, 2 parts of Salt bran, 4 parts of Galla gall, 1.2 parts of Sophora flavescens are mixed; 2, the mixture of step 1 is extracted with ethanol, wherein the stirring speed in the extraction process is 220r / min, the volume concentration of ethanol is 60%, the extraction time 36h, the leaching temperature is 78°C; 3. Filter the product obtained in step 2; 4. Distill the filtrate from step 3 at 113°C; Carry out moist heat sterilization for 25 minutes; 6. Add synergistic phosphorus and stir evenly to obtain a botanical fungicide.

[0017] Utilize the fungicide formulated in Example 3 to prevent and control iris gray mold, start to spray through root irrigation after the iris is planted, once every 10 days, root irrigation 5 times, chemi...

technical field

[0001] The invention relates to a fungicide, in particular to the use of a multifunctional botanical fungicide for preventing and treating Botrytis cinerea. Background technique

[0002] The application of chemically synthesized pesticides has the characteristics of good control effect and fast action, and is currently one of the important means of pest control. However, a large number of long-term and irrational use of chemically synthesized pesticides, especially the application of highly toxic and high-residue pesticides, has resulted in excessive pesticide residues, polluted the environment and agricultural products, and endangered the health of humans and animals; pests and diseases have developed resistance to pesticides, reduced control effects and even killed Serious natural enemies will cause pests and diseases to rampant again and destroy the ecological balance. This is the so-called "3R" problem of chemical pesticides.

[0003] The negative effec...

Examples

Embodiment 1

[0014] Embodiment 1: According to the following steps during preparation: 1. Take by weight 0.5 part of Daphne chamaejasme, 3 parts of Artemisia annua, 0.7 part of Artemisia annua, 0.3 part of camphor, 1 part of tobacco leaves, 0.8 part of licorice, 1 part of Salt bran, 3 parts of Galla gall, and 0.5 part of Sophora flavescens are mixed; 2. The mixture in step 1 is extracted with ethanol, wherein the stirring speed in the extraction process is 210r / min, the volume concentration of ethanol is 60%, and the extraction time 28h, the extraction temperature is 75°C; 3. Filter the product obtained in step 2; 4. Distill the filtrate from step 3 at 110°C; 5. Distill the fraction of step 4 at 130°C and 0.01MPa Carry out moist heat sterilization for 21 minutes; 6. Add azone and stir evenly to obtain a botanical fungicide.

Embodiment 2

[0015] Embodiment 2: According to the following steps during preparation: 1. Take 2 parts of Daphne chamaejasme, 5 parts of Artemisia annua, 2 parts of Artemisia annua, 1 part of camphor, 3 parts of tobacco leaves, 1.6 parts of licorice, 3 parts of Salt bran, 5 parts of gallnuts, 2 parts of flavescens are mixed; 2. The mixture in step 1 is extracted with ethanol, wherein the stirring speed in the extraction process is 230r / min, the volume concentration of ethanol is 60%, and the extraction time 42h, the leaching temperature is 80°C; 3. Filter the product obtained in step 2; 4. Distill the filtrate from step 3 at 115°C; Carry out moist heat sterilization for 30 minutes; 6. Add synergistic phosphorus and stir evenly to obtain a botanical fungicide.

Embodiment 3

[0016] Embodiment 3: According to the following steps during preparation: 1. Take by weight 1.4 parts of Daphne chamaejasme, 4 parts of Artemisia annua, 1.3 parts of Artemisia annua, 0.7 part of camphor, 2 parts of tobacco leaves, 1.2 parts of licorice, 2 parts of Salt bran, 4 parts of Galla gall, 1.2 parts of Sophora flavescens are mixed; 2, the mixture of step 1 is extracted with ethanol, wherein the stirring speed in the extraction process is 220r / min, the volume concentration of ethanol is 60%, the extraction time 36h, the leaching temperature is 78°C; 3. Filter the product obtained in step 2; 4. Distill the filtrate from step 3 at 113°C; Carry out moist heat sterilization for 25 minutes; 6. Add synergistic phosphorus and stir evenly to obtain a botanical fungicide.

[0017] Utilize the fungicide formulated in Example 3 to prevent and control iris gray mold, start to spray through root irrigation after the iris is planted, once every 10 days, root irrigation 5 times, chemi...