Eureka! Institutional Repository

Natural enemies are called insects that feed on other insects that are harmful to crops. The importance of the presence of natural enemies (predators and parasites) in a crop is particularly great, since it greatly contributes to the protection of plants from harmful species. However, the presence of natural enemies is often limited. Sources of natural enemies that contribute to biological control are often inadequate in one crop. But providing sources of nectar, pollen and prey is the ability to attract and retain natural enemies in a culture. This role may have flowering plant species that act as plants of beneficial insects 'banks'. In order to select the appropriate plant species as a plant bank, its ability to attract parasitoids, predators and other beneficial insects should be studied (Floros, 2014). It also uses laboratory breeding (insect breeding), in which, by means of specific procedures, the multiplication of a beneficial insect for the purpose of its spreading to control pests harmful to the cultivation of insects. The recording of natural enemies of harmful insects in tree plantations is an important action to combat the pest problem. In the framework of the work, a questionnaire was conducted, focusing on the level of knowledge and information of farmers on the importance, the process and the role of biological control and, more specifically, the role of natural enemies.