Topic
Eldana
About: Eldana is a research topic. Over the lifetime, 37 publications have been published within this topic receiving 452 citations.
Papers
1 Jan 2005
TL;DR: This paper documents some of the more important studies and outcomes of research into the beneficial role of silicon amendments in increasing the resistance of sugarcane to the Eldana stalk borer, especially in varieties susceptible to this borer.
Abstract: FOR MANY YEARS, silicon (Si) deficiency in crops was relatively unknown and this element was widely regarded as non-essential for plant growth. In recent years, Si has emerged as an important nutrient for a wide variety of crops including rice, sugarcane, wheat, barley and a range of horticultural crops. With the exception of potassium, sugarcane is known to take up more Si than any other mineral nutrient, with the potential to accumulate almost 400 kglha of Si, in a 12-month old irrigated crop, Early studies have tended to emphasise the role of Si in alleviating abiotic stress caused by factors such A1 and Mn toxicity in soils. In recent years, research increasingly has focused on the beneficial role of Si in alleviating biotic stress from factors such as pests and disease. In South Africa, the stalk borer Eldana saccharina Walker (Lepidoptera: Pyralidae) has been the most destnlctive pest in sugarcane and has over the past 30 years caused huge annual crop losses. This paper documents some of the more important studies and outcomes of research into the beneficial role of silicon amendments in increasing the resistance of sugarcane to the Eldana stalk borer, especially in varieties susceptible to this borer.
57 citations
TL;DR: Markers identified in this project are already being used to devise crosses for the coordinated assembly of resistance factors in progeny, and a subset of the most significant markers has been screened against a further collection of 53 varieties in order to extend the capacity of marker-assisted breeding.
43 citations
1 Jan 1974
TL;DR: During the last three years the borer Eldana saccharina Walker has resumed pest status in South Africa and has attacked sugarcane in Swaziland, with a discussion of incidence, varietal susceptibility and control.
Abstract: During the last three years the borer Eldana saccharina Walker (Lepidoptera : Pyralididae) has resumed pest status in South Africa and has attacked sugarcane in Swaziland. It had been a serious pest 30 years ago on the Umfolozi river flats, but in the intervening years it had remained dormant and unnoticed. For many years it has been a recognised pest of sugarcane and cereal crops in West and East Africa, where in recent years its increased importance as an agricultural pest has resulted in intensified studies of its biology and control. Its present position in South Africa and Swaziland is outlined, with a discussion of incidence, varietal susceptibility and control.
39 citations
TL;DR: In this paper, the larval stages of 15 most damaging African stemborer species belonging to the genera Chilo Zincken, Coniesta Hampson, Eldana Walker, Maliarpha Ragonot, Scirpophaga Treitschke (Pyralidae), Sesamia Guenee and Busseola Thurau are described.
Abstract: Descriptions are given of the larval stages of the 15 most damaging African stemborer species, belonging to the genera Chilo Zincken, Coniesta Hampson, Eldana Walker, Maliarpha Ragonot, Scirpophaga Treitschke (Pyralidae), Sesamia Guenee and Busseola Thurau. Chaetotaxy of the larvae has been studied. Previously published studies on the same subject are discussed. A key is provided for the identification of the genera, and where possible, the species.
29 citations
10 Oct 1988
TL;DR: Larvae of Eldana saccharina Walker were more susceptible to the Heterorhabditis and, to a lesser extent, one of the Steiner nemaspecies than to the other species.
Abstract: A species of Heterorhabditis and two species of Steiner nema were isolated from soil in Natal. A third species of Steinernema was obtained from a dead beetle grub. Larvae of Eldana saccharina Walker were more susceptible to the Heterorhabditis and, to a lesser extent, one of the Steiner nemaspecies than to the other species. Pupae of eldana were less susceptible than larvae to the Heterorhabditis and this Steinernema species. The Heterorhabditis sp. was tested against eldana in the field by spraying infested sugarcane with various concentrations and volumesof an aqueoussus pensionof the infective stage of the nematode. Theseranged from 50 to 8 000 infectives ml- ' and 50 to 200 ml stalk'. Large volumes of water and very large numbers of nema todes were required to achieve moderate control of eldana.
22 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2018 | 1 |
| 2017 | 1 |
| 2016 | 1 |
| 2015 | 2 |
| 2014 | 3 |
| 2012 | 2 |