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Suitability of Macadamia Nut as a Host Plant of Nezara viridula (Hemiptera: Pentatomidae)

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Laboratory feeding studies demonstrated that macadamia nut, Macadamia integrefolia (Maiden & Betche), is not a suitable host plant for southern green stink bug, Nezara viridula (L.). Weight gain, fecundity, and survival of adult N. viridula females that were fed macadamia nuts were inferior to those fed a standard laboratory diet of fresh green beans, Phaseolus vulgaris (L.), and peanuts, Arachis hypogaea (L.). No 2nd- or 3rd-instar N. viridula, and only a small proportion of 4th and 5th instars, survived to adulthood when given macadamia- only diets. Furthermore, nymphs that survived on macadamia-only diets weighed less and took longer to molt to adults than nymphs fed a standard diet. These results suggest that N. viridula populations do not increase on the crop, and thus other host plants are an important component of N. viridula population dynamics in macadamia orchards.

Document Type: Research Article

Publication date: August 1, 1996

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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