The purpose of preliminary research. 1. It helps you to narrow your topic by finding out how much information is out there and, therefore, what is do-able within the page-limits you have been assigned. 2. It helps you get an idea of which specific aspects of your topic you will want to do more detailed reading about.
Thank you for reporting this comment. Deer love tomato plants. And they can be very bold, they will walk right up next to the house and eat yew or rhododendron foundation plantings, as well as any tomato plants or other goodies they find. You need a high fence or some other deterrent to keep them out.
Raccoons and deer will also eat tomato plants and fruit. Alleopathy: Roots are inhibited by the presence of a chemical released by another plant, such as, black walnut. Tomatoes should not be planted within 50 feet of the drip line of a black walnut. Diseases: There are many diseases of tomato not listed here. Some caused by bacteria, some fungal, some viral, some nematodes and others with unknown causes.