The book remains a comprehensive and up-to-date reference work on the biology of aphids, the various methods of controlling them and the progress of integrated pest management as illustrated by ten case histories. Helmut van Emden is Emeritus Professor of Horticulture at the University of Reading, UK. He has researched on aphids for over 50 years and has wide international experience, including in the tropics. Richard Harrington retired in 2015 as Head of the Rothamsted Insect Survey, with which he worked for 36 years on aphid monitoring and forecasting. He led the EU project “EXAMINE” (Exploitation of Aphid Monitoring In Europe) which brought together colleagues involved in aphid monitoring throughout Europe and beyond.

This chapter focuses on strawberry root growth and architecture, discussing apical dominance, lateral root formation and allelopathic sensitivity. An architectural model of strawberry root growth is presented, showing that, if temperature and water availability are at optimal levels, the proliferation of roots in favourable soil patches is rapid, as is the depletion of nutrients and the accumulation of allelochemicals.

Meager water supply causes severe problems in the growth of plants, which rely on sufficient water transmitted by the soil to meet their needs. This new edition of Water Dynamics in Plant Production describes the basic scientific principles of water transport in the soil-plant-atmosphere continuum, explains the linkage between transpiration water use and dry matter production paying particular attention to the various agronomic strategies for adaptation to climate-driven limitations of water resources.