I don't compost tomao plants, What other plants carry diseases?

Home garden composters are usually not big enough to generate the heat needed to kill all sorts of fungi and other disease-causing spores.

For vegetables its important to rotate the crop each year. When always the same vegetables grow in one particular bed, then these plants use only certain nutrients in the soil,the consequence is the soil gets tired. Different plants have different fertilizer requirements. Divide your garden in plots A,B and C. In plot A go plants which need a lot of nutrients like: cabbage, spinach,tomatoes, zucchini and squash.

Plot B will receive the plants which need not as much fertilizer like: lettuce,carrots,beans,onions and radish.

Plot C will be good for peas, beans and herbs.

The following year plant in plot A the type of plants which grew in plot B last year.

The plot B will now be ready for plants which grew in plot C the past year.

Plot C must now be enriched with lots of compost and well decayed manure or other organic fertilizer such as rock phosphate and green sand.Here plants mentioned for plot A go in.

Yes, that's one reason but the other is that some plants take out certain nutrients and others take out other nutrients. Composting is great but nothing diseased should go in and it should have equal green to brown stuff so it can work, also it needs enzymes to work. You can get it from catalog or put lots of dirt and earthworms from your garden or yard in the compost pile to help it along. also a can of beer is good now and then, the yeast helps it along. If the blight is in the soil which it is a lot of times and if you live where it gets cold you have a good reason to turn the garden over before winter so It can kill tne blight that is in the soil. also, you may have to call and ask a Master Gardner in your area for advice. They can probably be found through your local agraculture extension service who might tell you about the blight you have. good luck.

All plants can carry diseases. Some plants are just more prone than others. Unless the material looks infected, I wouldn't worry it affecting your compost (meaning, if your tomatoes have blight, toss them in the garbage, but you don't need to avoid composting ALL tomatoes at ALL times). It's extremely important to rotate crops. This can prevent problems not only with diseases, but also with insects and nutritional deficiencies.