How can plant diseases be controlled?

Control. Phytoplasmas are normally controlled by the breeding and planting of disease-resistant crop varieties (perhaps the most economically viable option) and by the control of insect vectors. Tissue culture can be used to produce healthy clones of phytoplasma-infected plants.

What is phytoplasma disease?

Phytoplasma diseases of vegetable crops are characterized by symptoms such as little leaves, phyllody, flower virescence, big buds, and witches’ brooms. Phytoplasmas enclosed in at least sixteen different ribosomal groups infecting vegetable crops have been reported thus far across the world.

Plants can recover from viral disease and achieve a virus-tolerant state. Virus-induced diseases cause severe damages to cultivated plants resulting in crop losses. Interestingly, in some cases, the diseased plants are able to re-gain health, further grow and develop normally.

A variety of chemicals are available that have been designed to control plant diseases by inhibiting the growth of or by killing the disease-causing pathogens. Chemicals used to control bacteria (bactericides), fungi (fungicides), and nematodes (nematicides) may be applied to seeds, foliage, flowers, fruit, or soil.

To make a fungicide out of this, take one tablespoon of vinegar and mix it with a gallon of water. … Vinegar mixture can treat most fungal infections on any plant, without causing any harm.

Wash the pot thoroughly with a bleach solution. If possible, dip the remaining healthy roots in a fungicide solution to kill off any possible root rot fungus. After treating root rot in the plant, repot the plant in clean potting mix.

If those pests just won’t quit, you can use a solution of water and soap in a spray bottle to spray into the top layer of soil (or pour it directly on top). You can also do this with an organic insecticidal soap or Neem oil mixture; these natural pesticides should be effective after a few treatments.

How to Get Rid of Fungus Gnats

1. Make the Natural Habitat Inhospitable.
2. Use a Soap-and-Water Mixture.
3. Use Sand or Gravel.
4. Dispose of the Top Layer of Soil Outdoors.
5. Don’t Overwater Your Houseplants.
6. Water From the Bottom.
7. Store Extra Potting Soil in an Airtight Container.

Mix four parts water with one part hydrogen peroxide and soak your soil with the solution. Neem oil can also be diluted with water and applied to the soil to kill larvae. You can also use neem oil as a spray to kill adult flies on contact.

Mix one part peroxide with four parts water, and pour it through the soil at the root zone until it begins to come out of the base of the pot. The peroxide kills fungus gnat larvae on contact. Neem oil is also an effective soil drench to combat fungus gnat larvae.