Floriculture is estimated to cover an area of 126,000 ha with production of 694,000 MT of loose flowers and 2762 million numbers of cut flowers during 2006. Medicinal crops form one of the important groups due to their demand in various pharmaceutical industries and also to earn foreign exchange by way of export. Aromatic crops occupy an area of 0.262 million ha with production of 0.202 million tonnes. The annual tropical root crop production (potato, sweet potato and cassava) is in the range of 11.835m million MT grown in 1.909 million ha with productivity of 19.7 MT/ha. Of the several factors responsible for lower productivity of ornamental, medicinal, aromatic and tuber crops, pests (insect pests, diseases and nematode parasites) are considered as important limiting factors. The third volume deals with the above aspects in detail using regulatory, physical, cultural, chemical, biological, host plant resistance and integrated methods.