Adults remain in the pupal cell 17-22 days before emerging and flying to palm crowns to feed. Pupae are formed in a cell made in the wood or in the soil beneath where the larvae feed. Eggs hatch in 8-12 days, and larvae feed and grow for another 82-207 days before entering an 8-13 day non-feeding prepupal stage. Life CycleĮggs are laid and larvae develop in decaying palm logs or stumps, piles of decomposing vegetation or sawdust, or other organic matter. When the leaves grow out and unfold, the damage appears as V-shaped cuts in the fronds or holes through the midrib. As they bore into the crown, they cut through the developing leaves. rhinoceros will have important effects on both these industries.ĬRB adults damage palms by boring into the centre of the crown, where they injure the young, growing tissues and feed on the exuded sap. Coconuts are a significant crop for Solomon Islands both for food and export, oil palm is also a significant export revenue earner. DamageĬRB is a serious pest of palms elsewhere. To date there are no confirmed reports of the beetle on any other island in the country. The outbreak is focussed in residential areas of Honiara but symptoms have been reported in palms several kilometres east and west of Honiara. A delimiting survey was carried out and plans made for the introduction of the fungus Metarhizium anisoplae and Baculovirus oryctes. The coconut rhinoceros beetle (CRB), Oryctes rhinoceros, was discovered in Honiara in January 2015. Categories: New Pests & Diseases Coconut Rhinoceros Beetle In Solomon Islands
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