A kind of andrographis paniculata water agent for preventing and treating fruit tree brown rot and its preparation method

Abstract

The invention discloses an andrographis paniculata water agent for preventing and treating fruit tree brown rot and a preparation method thereof. The Andrographis paniculata water preparation includes compound extracts of Andrographis paniculata, Cortex and Lonicerae vine, tea saponin, antifreeze and preservative; the raw material ratio of the extract is: 80-120 parts of Andrographis paniculata, 5-40 parts of Cetaceae, Lonicera vine 5‑35 servings. Its preparation method is as follows: (1) mix andrographis paniculata, basilicum and honeysuckle in proportion, extract with microwave water, pH=6.0-8.0, extraction time is 30-45 minutes, microwave power is 500W, temperature is 50°C; extraction 2 Once, combine extracts, filter, filtrate alcohol precipitation, vacuum filtration, concentrate to obtain the compound extract of 0.8-2.3g crude drug / mL; (2) compound extract is mixed with tea saponin, antifreeze and preservative , adding 0.5% sodium carboxymethyl cellulose aqueous solution to constant volume to obtain Andrographis paniculata aqueous solution. The invention can effectively sterilize and prevent corrosion, has good effect, is non-toxic and has no residue, has simple production technology and is suitable for industrialized production.

Description

technical field [0001] The invention relates to an andrographis paniculata water agent for preventing and treating brown rot of fruit trees and a preparation method thereof. Background technique [0002] At present, chemical pesticides are an effective means to prevent and treat plant diseases, and play a huge role in ensuring high and stable crop yields. However, the "3R" problem caused by the long-term and large-scale unreasonable use of traditional chemical pesticides, that is, the residue, resistance, and re-emergence is becoming more and more serious, which has aroused widespread concern in the society and poses a huge threat to the environment and human health. It is more and more urgent to seek and develop new pesticides that are safe for human health and ecological environment. Compared with chemical pesticides, biological pesticides are generally considered to have obvious advantages such as no pollution, no pollution, no residue, and less resistance. [0003] Bro...

AI Technical Summary

Problems solved by technology

However, the "3R" problem caused by the long-term and large-scale unreasonable use of traditional chemical pesticides, that is, the residue, resistance, and rampantness is becoming more and more serious, which has aroused widespread concern in the society and poses a huge threat to the environment and human health.