What can copper fungicide be used for?

Copper-based fungicides can be used to manage coastal diseases such as melanose, citrus scab, Alternaria brown spot and citrus black spot, as well as greasy spot, brown rot and Septoria spot, which are also found in southern inland growing areas. Warm, humid conditions favour a range of citrus fungal diseases.

Can you use too much copper fungicide?

However, toxicity can still be a problem in some situations. Copper fungicides work to kill pathogen cells by denaturing enzymes and other critical proteins. However, copper can also kill plant cells if absorbed in sufficient quantities. We often see copper injury on new leaves and leaf edges because of this.

When should I apply copper fungicide?

Ideally, apply copper fungicide before fungus is visible. Otherwise, apply the product immediately when you first notice signs of fungal disease. If the fungus is on fruit trees or vegetable plants, you can safely continue to spray every seven to 10 days until harvest.

Can copper fungicide hurt plants?

Copper fungicides work to kill pathogen cells by denaturing enzymes and other critical proteins. However, copper can also kill plant cells if absorbed in sufficient quantities.

Can you eat vegetables sprayed with copper fungicide?

Bonide Liquid Copper Fungicide Concentrate can be applied up to harvest, just be sure to wash well before eating.

Can I eat vegetables sprayed with copper fungicide?

Long answer: Copper is one of the most commonly-used fungicides for treating tomatoes organically. The U.S. government’s Environmental Protection Agency (EPA) routinely reviews fungicides and their safety. Currently, in the U.S. there are no human toxicity concerns associated with tomatoes treated with copper spray .

Can copper fungicide be applied to soil?

Answer: Bonide Liquid Copper Fungicide Concentrate needs to be applied directly to infected plants for disease. It cannot be applied to soil.

Is copper fungicide good for tomatoes?

Copper sulfate, a readily available fungicide and bactericide, prevents many fungal diseases from developing on tomato plants. Apply copper sulfate early in the growing season to avoid losing tomatoes to an unexpected disease.

How often can you spray copper fungicide?

Most copper fungicide spray products are applied on a weekly basis. Apply some every ten days.