Effects of nitrogen fertilization on potato leafhopper (Hemiptera: Cicadellidae) and maple spider mite (Acari: Tetranychidae) on nursery-grown maples

Abstract:

Although leaf nitrogen (N) has been shown to increase the suitability of hosts to herbivorous arthropods, the responses of these pests to N fertilization on susceptible and resistant host plants are not well characterized. This study determined how different rates of N fertilization affected injury caused by the potato leafhopper ( Empoasca fabae Harris) and the abundance of maple spider mite ( Oligonychus aceris (Shimer)) on ‘Red Sunset’ red maple ( Acer rubrum ) and ‘Autumn Blaze’ Freeman maple ( Acer  ×  freemanii ) during two years in Indiana. N fertilization increased leaf N concentration in both maple cultivars, albeit to a lesser extent during the second year of the study. Overall, Red Sunset maples were more susceptible to E. fabae injury than Autumn Blaze, whereas Autumn Blaze maples supported higher …

Año de publicación:

2015

Keywords:

Fuente:

google