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- W331978049 abstract "Abstract This paper identifies for the first time hoppers and adults of a complex of locust and grasshopper species attacking sugarcane in the Empangeni area. The most abundant species are Nomadacris septemfasciata (a locust) and Petamella prosternalis (a grasshopper). Ornithacris cyanea and five other grasshopper species occur, but at lower abundance levels. The relative abundance of the species varies according to location within the area, with N. septemfasciata abundant in the southerly region, and P. prosternalis most abundant in the northerly region. Relative abundances of life stages of the two most common species over the sampling period show that adult N. septemfasciata are present throughout the winter period, and mate and oviposit when the spring rains commence in September/October. In contrast, adults of P. prosternalis mate and oviposit in autumn (April/May) and die before winter sets in. Eggs of P. prosternalis diapause through winter. Eggs of all species hatch in late spring (November) as hoppers, which develop to adults throughout summer. During winter, N. septemfasciata is the most abundant species, while P. prosternalis dominates in summer. These basic data are very important knowledge blocks on which to base a sustainable, environmentally friendly Integrated Pest Management plan for this complex of species attacking sugarcane in the Empangeni region, and indicate that a common single control tactic could exacerbate rather that minimise the problem." @default.
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- W331978049 date "2014-01-01" @default.
- W331978049 modified "2023-09-26" @default.
- W331978049 title "Grasshopper (Orthoptera) outbreaks on sugarcane in the Empangeni region of Zululand, KwaZulu-Natal, South Africa." @default.
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