Pecan stem girdler, Maroga melanostigma (Wallengren) (Lepidoptera: Xylorictidae): a possible candidate for biocontrol?

Seymour, J.E., and Crouch, M. (1993) Pecan stem girdler, Maroga melanostigma (Wallengren) (Lepidoptera: Xylorictidae): a possible candidate for biocontrol? In: Proceedings of the Australian Applied Entomological Research Conference. pp. 233-235. From: Australian Applied Entomological Research Conference, 28 April - 1 May 1992, Canberra, ACT.

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Abstract

[Extract] Stahmann Farms, Australia's largest pecan plantation at Moree NSW, produces 85% of Australia's pecan nuts (Carya illinoensis [Wangenh.] C. Koch), from approximately 68 000 trees on 680 ha. In the 1990-91 season, approximately 2.8 million kg of nuts were produced and sold for approximately $8 000 000. Larvae of the xyloryctid moth, Maroga melanostigma (Wallengren), a species known to attack a range of exotic and native trees (Neilsen & Common, 1991), are major pests in this plantation. The larvae feed on the inner bark of the pecans, predominantly around injuries to the limbs or at old pruning sites. They leave characteristic injury marks on the trees, weaving frass into a silken bag around the entry holes and wounds. Damage to the limbs is thought to cause a significant decrease in the production rate of the affected trees and, more seriously, results in many of the limbs dying due to ringbarking.

Item ID: 45113
Item Type: Conference Item (Research - E1)
Keywords: entomology; pecan nut crop pests; Marogo melanostigma; insect parasitoids; ciological pest control; pest ecology
Date Deposited: 16 Aug 2016 01:50
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060201 Behavioural Ecology @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 100%
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