What methods are there to prevent pesticide damage in flowers?

Pesticide damage can generally be divided into acute pesticide damage and chronic pesticide damage.

Symptoms:

Acute pesticide damage: occurs quickly, with obvious symptoms. It generally manifests as pitted spots or withering on the leaves; spots, deformities, or failure to set fruit; scorched petals, dropped flowers, and dropped buds; slowed plant growth, and even death of the entire plant.

Chronic pesticide damage: the symptoms are not obvious and are hard to judge in a short time. It generally manifests as slowed photosynthesis, poor development, delayed flowering, small and few flowers, faded flower color, and easy dropping of flowers and fruits, very similar to the symptoms of nutrient deficiency.

Prevention: Strictly control the concentration and dosage of pesticides used. If pesticides used at the standard dosage and concentration are found not to achieve the expected effect, the pesticide variety should be replaced. Pesticides must not be mixed at will, so as to avoid causing pesticide damage.

First aid: If the wrong pesticide was used, immediately spray a large amount of clean water to wash the plants. If the wrong soil treatment pesticide was used, the method of alternating irrigation and drainage can be used to remedy it. After washing off the pesticide, apply a quick-acting fertilizer to prompt the damaged plants to recover their vitality. If a pesticide application error occurs and is discovered relatively promptly, neutralization with a counteracting agent can be carried out after washing with water under the guidance of scientific and technical personnel who understand pesticide principles.

For example, after pesticide damage occurs from using dimethoate emulsion, alkaline pesticides such as lime sulfur mixture and methomyl can be used to neutralize it, or a 200-fold borax solution can be sprayed 1-2 times. After broadleaf flowering plants are mistakenly treated with the herbicide MCPA, the leaves become damaged and turn white. A 50% sodium humate granular formulation can first be dissolved with a little water, then diluted with water into a 500-fold solution, and poured onto the base of each plant one by one; after 3-5 days the leaves can recover their function. If pesticide damage occurs from spraying copper sulfate, lime water at a concentration of 1%-5% can be sprayed to detoxify.