Relations between insects and plants are examined and emphasis is placed on the importance of agricultural products and plant protection.

Aim of this course is to teach the host range and feeding types of phytophagous insects, the process of host-plant selection, the effects on insects of food and the features of plants as food, the effected factors to feeding behaviors of insects, the adaptations of insects to vegetable defences, specialization of insects on plants and plant parts, chemicals in plants.