Application of Merremia boisiana extract in preparing bactericide

Abstract

The present invention provides application of Merremia boisiana extract in preparing bactericide. Merremia boisiana extract has broad-spectrum and high bacteriostasis activity on plant pathogenic fungi, food mildew and plant pathogenic bacteria, and high preventing and treating effect on sheath and cullm blight of rice and frosty mildew of cucumber. The extract is safe to crops and easy to biodegrade, and has no residue and no pollution. In addition, it has action mechanism on plant pathogenic fungi, food mildew and plant pathogenic bacteria dissimilar to common bactericides and thus less resistance. The present invention provides one new kind of bactericide while paving one way of controlling Merremia boisiana as one harmful forest plant.

Description

technical field

[0001] The invention belongs to the field of pesticides, and in particular relates to the application of the extract of Thuja chinensis in the preparation of fungicides, and at the same time relates to the preparation method of the plant extract of Thuja japonicus. Background technique

[0002] As we all know, pesticides are one of the safeguards for plant disease control. Even today, although the use of disease-resistant genes has been rapidly developed under the impetus of molecular biology-related technologies, chemical pesticides still play an indispensable role in plant disease control. Replacement effect. The advent of the fungicide Thiram in 1934 opened the era of organic synthetic fungicides. Since then, the control of plant diseases has become more efficient, and chemically synthesized fungicides have made positive contributions in the control of plant diseases. However, since the 1960s, the public has paid more and more attention to the toxicity o...