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Effects of nitrogen fertilization on tritrophic interactions
The potential effects of N on tritrophic interactions are reviewed and it is shown that nitrogen effects can extend directly to natural enemies through herbivores by changes in herbivore quality vis-à-vis the natural enemy, and may even provide Herbivores with a defense against natural enemies. Expand
Nitrogen fertilization rate affects feeding, larval performance, and oviposition preference of the beet armyworm, Spodoptera exigua, on cotton
Development and oviposition of the beet armyworm, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae), were studied in relation to varying N fertilization levels to find out whether these effects can have important implications for population dynamics and pest status of beet armyworms in the field. Expand
Diurnal flight response of the walnut twig beetle, Pityophthorus juglandis Blackman (Coleoptera: Scolytidae), to pheromone-baited traps in two northern California walnut habitats
Abstract The diurnal flight response of the walnut twig beetle, Pityophthorus juglandis Blackman (Coleoptera: Scolytidae), was assessed during two seasonal periods at two sites in northernExpand
Physiological, Nutritional, and Biochemical Bases of Corn Resistance to Foliage-Feeding Fall Armyworm
Three corn germplasm lines were examined for Spodoptera frugiperda resistance and larvae survived better and developed faster in susceptible Ab24E than in resistant FAW7050 or Mp708, and high inducibility of peroxidase may be an indicator of S. frug Piperda susceptibility. Expand
Cotton Plant, Gossypium hirsutum L., Defense in Response to Nitrogen Fertilization
Despite significant N fertilization effects on herbivore-induced plant defenses, at short range, the parasitoids were unable to differentiate between S. exigua larvae feeding on physiologically different cotton plants that share large constitutive volatile pools releasable when damaged by herbivores. Expand
Moisture content and nutrition as selection forces for emerald ash borer larval feeding behaviour
1. The exotic phloem‐feeding emerald ash borer (EAB), Agrilus planipennis, has killed tens of millions of North American ash trees (Fraxinus) since its first detection in the U.S.A. in 2002. AshExpand
Crepuscular Flight Activity of an Invasive Insect Governed by Interacting Abiotic Factors
Crepuscular flight activity of this insect can be best explained by the coincidence of moderately high temperature, low light intensity, moderate wind speed, and low to moderate barometric pressure. Expand
Differential Response in Foliar Chemistry of Three Ash Species to Emerald Ash Borer Adult Feeding
Although levels of total phenolics from black and green ash foliage were not affected by EAB adult feeding, they decreased significantly in white ash, and the possible ecological implications of these findings are discussed. Expand
Changes of Oxidase and Hydrolase Activities in Pecan Leaves Elicited by Black Pecan Aphid (Hemiptera: Aphididae) Feeding
The effects of M. caryaefoliae feeding on the foliar activity of oxidative and hydrolytic enzymes in relation to the degree of aphid resistance among pecan varieties are reported to be used to develop enzyme markers for identifying black pecan aphid susceptibility and/or susceptibility in pecan germplasm. Expand
Review of the emerald ash borer (Coleoptera: Buprestidae), life history, mating behaviours, host plant selection, and host resistance
The life history, mating behaviours, and host plant selection by EAB in North America as well as host resistance to EAB attack are reviewed. Expand