Pest, disease and weed management

Search Results

Now showing 1 - 4 of 4

Resistance mechanisms and selection for resistance in sugarcane to sugarcane weevil borer : SRDC final report BSS15
(BSES, 2005) Berding, N
This project primarily sought to determine resistance mechanisms and selection mechanisms for resistance in sugarcane to SWB (Sugarcane weevil borer). As such it addressed the SRDC strategies of developing more productive cultivars by increasing clonal resistance to insect pests, and of developing resource management practices that ensure sustainable productivity through the expanded use of GCTB. From prior assessment of SWB infestation in parental clones at BSES Meringa and clones in advanced selection trials in the crop-improvement program based on on BSES Meringa, as well as reference to existing literature, reaction to SWB infestation obviously is a multifaceted trait that may encompass many individual plant traits. This research was based on a hypothesis that attempted to cover as many of these traits and their possible interaction with the insect.
An integrated pest management approach for the control of sugarcane weevil borer, Rhabdoscelus obscurus (Coleoptera: Curculionidae)
(BSES, 2000) Garrad, S; Sallam, M; Oehlschlager, A
Treatments with Regent alone and in combination with pheromone trapping of sugarcane weevil borers were assessed in field trials in the Mulgrave area. Results suggest that the combination of insecticidal treatment with pheromone trapping reduce the number of stalks infested as well as number of damage internodes. Rat infestation, however, was an important factor influencing the degree of infestation and biased our results. Weevil borer control can only be efficiently achieved in an Integrated Pest Management approach is implemented taking into consideration other control options. More work is needed to investigate the usefulness of chemical treatment against weevil borers and the economic return following application.
Factors affecting the incidence of and damage caused by weevil borers : SRDC final report BS151S
(BSES, 1998) Stringer, JK; Telford, DE
This study has shown that sampling billets for weevil borer damage through the extraneous matter system of a sugar mill gives reliable data as it supports in field data collected by BSES. These data may allow the simple field assessments to be related to the entire mill area. This would benefit other mill areas who do not currently sample for weevil borer damage.
Field Experiments to Optimise Lures for Mass-Trapping of Cane Weevil Borer
(BSES, 1998) Robertson, LN; Giblin-Davis, RM; Oehlschlager, AC
Cane weevil borer, Rhobdoscelus obscurus (Biosduval) (Coleoptera: Curculionidae: Rhynchophorinae), is an introduced pest of sugarcane in Queensland, Hawaii and Fiji. It was accidentally introduced from Papua New Guinea about 1900 with sugarcane planting material (Veitch 1917). Previous research showed that male cane weevil borers produce aggregation pheromones which attract both male and female cane weevil borers. Three compounds emitted by feeding males were identified by Dr R Gries ata Simon Fraser University (see Robertson et al 1997). These compounds were synthetically produced by ChemTica Internacional SA and two of these, 2-methyl-4-octanol and 6-methyl-2-hepten-4-ol (rhynchophorol), were shown to be the active compounds for attracting cane weevil borer (Robertson et al 1997). The experiments reported here were designed to determine the optimum ratio of the two active compounds to attract cane weevil borer. In addition, the relative attractiveness of they synthetic lures was compared with that produced by feeding male cane weevil borers. Finally, a chemical known to increase trap catches of other species of Rhynchophorinae, ethyl acetate (marketed as 'Weevil Magnet'), was tested for its ability to synergise the attractiveness of the aggregation pheromones.

Pest, disease and weed management

Browse

Filters

Advanced Search

Filter by

Settings

Sort By

Results per page

Search Results