The Effects of Neotyphodium-Infected Perennial Ryegrass on the Abundance of Invertebrate Predators
Plant feeding insects live in a world dominated on the one hand by their natural enemies and on the other by a nutritionally inadequate, and often poisonous food supply. Although there are more than 40 known species of plant feeding insect adversely affected by Neotyphodium-infected plants (Prestidge and Ball 1996), the effects of N. lolii on the predators of herbivorous insects are unknown. This information is required, as often the interaction of insect pests and natural enemies are extremely complex. The development of a database of Neotyphodium-sensitive invertebrate species prior to the widespread introduction of selected endophyte/grass associations is imperative so that concerns about environmental disturbance and loss of endemic species are avoided. This paper reports on the abundance of common ground dwelling predatory invertebrates in a large field trial sown with N. lolii-infected and N. lolii-free perennial ryegrass.
KeywordsNatural Enemy Soil Core Endophytic Fungus White Clover Perennial Ryegrass
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