Pest, disease and weed management

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Research outcomes: A comprehensive RD&E program that addresses existing and emerging pests, diseases and weeds, allowing sugarcane growers to manage their crops efficiently with minimal environmental impacts. An enhanced industry capacity to deal with incursions of exotic pests, diseases and weeds.

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1991 - 1999112000 - 20067

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Author: search.filters.author.Allsopp, PGHas files: Yes

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Now showing 1 - 10 of 18
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    Management strategies for rhyparida in southern Queensland : SRDC final report BSS236
    (BSES, 2002) Fischer, TWA; Allsopp, PG
    Larvae of rhyparida beetles bore into the bases of newly ratooning shoots, causing dead hearts. Very minor damage will kill 'surplus' shoots. More intense damage appears to set plant growth back and cause some yield loss. Prolonged attack will kill all shoots and kill the stool, leaving large gaps and necessitating replanting. No insecticide is registered for control of the pest and the efficacy of cultural controls is unknown.The project developed a better understanding of the phenology of Rhyparida nitida ? this species has a one-year life cycle with extended oviposition over summer, slow development of small larvae during autumn and winter, and more rapid development of larger larvae during spring. The extended oviposition means that each generation has individuals of widely varying ages.Extension of outcomes to stakeholders took place through grower discussion groups, on-farm participatory trials, and newsletters.
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    Methods for accurate identification of canegrubs : SRDC final report BS97S
    (BSES, 1999) Allsopp, PG; Miller, LJ
    The objectives of the project were; determine morphological characters for accurate identifica6tion of larvae and adults of all species of canegrubs; validate the usefulness of morphological characters through DNA analysis; produce written and computer-based keys to enable extension staff and growers to accurately identify larvae and adults of canegrubs.
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    Assessment of the potential of sex pheromones as strategic lures for the control of canegrubs : SRDC final report BS17S
    (BSES, 1991) Allsopp, PG; Stickley, BDA
    Sex pheromones were shown to be emitted by females of Antitrogus consanguineus, A. parvulus and L. picticollis. Attraction of males of L. picticollis to females of A. consanguineus shows that the compound or compounds involved are similar in those two species. Detection of pheromones was probably related to the morphology of the adult antennae. One compound was present in emissions of adult female L. negatoria, but this compound could not be identified.
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    BSS249 : Preparedness for borer incursion : Summary of effectiveness of Tebufenozide for control of sugarcane stemborers
    (BSES, 2001) Allsopp, PG
    Following a search of the literature and discussions with entomologists in Papua New Guinea and Louisiana, tebufenozide (Mimic?, Confirm? or RH-5992) was identified as a potential highly useful candidate insecticide for emergency use in Australia following an incursion of a stemborer.Tebufenozide is an ecdysone agonist that acts by binding to the ecdysone receptor protein. The moulting process of treated insects is lethally accelerated. It is non-phytotoxic and shows little negative effect on populations of stemborer parasites and other beneficial insects. It is registered for use in USA against Diatraea saccharalis and is used successfully in Papua New Guinea against Sesamia grisescens.Data included in this report demonstrate the effectiveness of tebufenozide against these two stemborer species and its minimal effects on beneficials. Data are also included on the chemical composition of the compound, its physico-chemical properties, toxicology and environmental fate.
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    Assessment of aromatic compounds as strategic lures in a canegrub control program : SRDC final report BS34S
    (BSES, 1991) Allsopp, PG
    Anethole, n-butyric acid, citral, citronellal, eucalyptus oil, eugenol, geraniol, hexanoic acid, hexan-1-ol, 3-hexen-1-ol, 1-nonanol, pentanoic acid, phenol, sorbic acid and the standard Trece Japanese beetle floral lure (10:22:11, 2-phenylethylpropionate: eugenol: geraniol) were tested as attractants for Anoplognathus porosus, Antitrogus consanguineus, A. parvulus, Dermolepida albohirtum, Lepidiota crinita, L. negatoria, L. noxia, L. picticollis, and Metanastes vulgivagus. None were effective attractants. The apparent activity of sorbic acid would justify testing butyl sorbate as an attractant.
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    Epidemiology and control of sugarcane mosaic virus in the Isis district : SRC final report UQ3S
    (BSES, 1992) Teakle, DS; Taylor, PWJ; Allsopp, PG
    Objectives:
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    Rhopaea Canegrub - Assessment of Pest Status and an RD&E program for improved Management in the Tweed Valley
    (BSES, 1996) Allsopp, PG
    I visited the Tweed Valley area to assess the pest status of rhopaea canegrub, diagnose reasons for grower dissatisfaction with present control options, and, with affected growers and technical staff to develop a research, development and extension program aimed at improving management strategies for minimising the impact of these canegrubs.My main findings wereRhopaea canegrub is an economic pest of sugarcane in the Tweed area, mainly on the peat soils, and causes important losses to some of the otherwise most productive growers.The year 1-year life cycle, poor dispersal by adult females, presence of larvae high in the soil profile, and the acidic, organic and friable soils all influence control options and the efficacy of these options.suSCon Blue is giving inadequate control. The insecticide is being placed too deep to contact grubs and the low grub populations in the first two years followling replanting means that the effect of much of the active ingredient is wasted.Knockdown insecticides have a limited potential because of the grub's one year life cycle and because crops are not irrigated.Cultural controls, such as rolling, plough-out and fallowing, and use of tolerant varieties have considerable potential for use as management tools.Green-cane trash-blanketing or trash incorporation may change the farming system in the medium-term future and their effects on rhopaea canegrubs are unkown.There is a core group of growers who are very aware of the problem and who are very enthusiastic about testing alternative and integrated management options.A RD&E plan, which incorporates all of the above options, was developed in conjunction with growers and extension officers. This program should be developed for funding from SRDC and insectide companies and would provide a good project for a postgraduate student. The key components of this program are
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    Pest risk analysis of sugarcane for the Northern Australia Quarantine Strategy - Quarantine insects
    (BSES, 1998) FitzGibbon, F; Allsopp, PG; De Barro, PJ
    The purpose of this pest risk analysis (PRA) is, firstly to identify quarantine pests and pathogens which pose a threat to sugarcane, which may enter Australia through its northern borders into the area covered by AQIS Northern Australia Quarantine Strategy (NAQS), and secondly, to identify measures which could be taken by various agencies to reduce the risks of entry or to minimise the impact of such pests should they arrive. The PRA was conducted as outlined in the FAO Standard Guidelines for Pest Risk Analysis (FAO 1996) and is one of a series of PRAs commissioned by NAWS. The other host plants covered in this series are banana, citrus, mango, cotton, grape, grain, sorghum, cucurbits, maize, pasture legumes\grasslands, eucalyptus, conifers, Acacias and palms (including coconuts).
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    Factors influencing populations of Eumargarodes laingi and promargarodes spp. in sugarcane at Bundaberg and derivation of sequential sampling plans
    (BSES, 1992) Walker, PW; Allsopp, PG
    A survey of the margarodids Eumargarodes laingi Jakubski and Promargarodes spp. in sugarcane was carried out at Bundaberg. E. laingi cyst numbers were influenced by soil type; Promargarodes spp. numbers did not differ between soil types, but there were differences between cultivars. There were more E. laingi and Promargarodes spp. cysts in older crops. The number of times the previous fallow was ploughed and rotary hoed influenced E. laingi numbers, but not Promargarodes spp. numbers. There were fewer E. laingi cysts following a long fallow, but crop rotations did not affect E. laingi numbers. There were trends to lower Promargarodes spp. numbers following a long fallow or a sugarcane-rockmelon rotation. Fields treated with chlorpyrifos (emulsifiable concentrate) had lower numbers of E. laingi than those treated with controlled-release chlorpyrifos; Promargarodes spp. numbers were not influenced by insecticide applications. Soil pH and electrical conductivity, ripping during fallow, type of irrigation, and nematicides used did not affect numbers of E. laingi or Promargarodes spp.
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    Sugarcane smut yield-loss estimates - eastern Australia 2006 : Responses to questions raised by the consultative committee on emergency plant pests
    (BSES, 2006) Croft, BJ; Allsopp, PG; Egan, BT; Hogarth, DM
    This document has been prepared by BSES scientists with extensive experience with sugarcane smut. It is based on our reviews of published literature and first-hand experience with smut in the Ord River Irrigation area and Childers-Bundaberg regions of Australia.