Plant health, plant protection and abiotic factors.

Abstract This chapter describes (i) major greenhouse pests (including insects, mites and nematodes) and pest control options focusing on integrated pest management (which involves the use of 'ofter' control options such as biological and microbial control combined with physical exclusion, pest trapping, resistant crops and other methods); (ii) selected diseases of hydroponic crops, including those caused by fungi, bacteria and viruses; and (iii) physiological disorders caused by non-living or non-infectious factors such as temperature, light, irrigation water quality and salinity, chemical injury (phytotoxicity), and cultural practices.