You need to be more specific. There are literally thousands of individual crop pests. Just for one crop, corn (maize), there are a minimum of six different weeds, four insect species, eight diseases,...
Carl Linnaeus (1707 - 1778) laid the foundations of our modern botanical classification system, which is called binomial nomenclature. He is known as the father of modern taxonomy, since he began...
First make a list of what you want to sow / plant. In doing so, keep in mind that if you sow / plant every year just on the same surface allows diseases and pests can spread. There is no need to use...
Cash crops are crops which are we sell or export to other countries for earn money and foreign exchange such as tobacco and rice and wheat and sugar-cane etc.