Diseases are a major source of crop and plant damage that can be caused by a number of plant pathogenic (disease-causing) organisms. Fungi are the number one cause of crop loss worldwide. Viruses, nematodes, and bacteria also cause diseases in plants (Figures 1, 3, 4). Symptoms resembling those caused by pathogens can be caused by abiotic (non-living) factors, such as nutrient deficiency and air pollution (compare Figures 2, 5, and 6), and also insects (Figure 6).
Fungicides, herbicides and insecticides are all pesticides used in plant protection. A fungicide is a specific type of pesticide that controls fungal disease by specifically inhibiting or killing the fungus causing the disease. Not all diseases caused by fungi can be adequately controlled by fungicides. These include the vascular diseases Fusarium and Verticillium wilt (Figure 7). Diseases caused by other types of organisms, disorders caused by abiotic factors, and insect damage are not controlled by fungicides. Thus it is essential to first determine the cause of symptoms before applying a fungicide.
Related Industry Knowledge
- Correct use of insecticides
- The main components of the insecticide
- Current situation of the developmen...
- Insecticide killing methods
- Main species of fungicides
- Fungicide operation method
- Method for improving the effect of ...
- Fungicide determination method
- The difference between industrial f...
- The effect of plant growth regulators
- Why are Fungicides Needed
- Types of Fungicides and Definitions
- What is a systemic insecticide
- Lufenuron — toxicity, side effects,...
- Pymetrozine Introduction
- Nitenpyram Agricultural applications
- Imidacloprid Uses in Agriculture
- Acetamiprid uses in agriculture