Evaluating the benefits of doseresponse bioassays during aerial pest eradication operations

Richardson, B.; Kay, M.; Kimberley, Mark O.; Charles, J. G.; Gresham, Belinda A.

doi:10.30843/nzpp.2005.58.4248

Cited by 9 publications

(9 citation statements)

References 5 publications

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“…The eradication program used an integrated approach combining insecticides (chlorpyrifos, deltamethrin) sprayed on host trees from the ground, the aerial application of the insecticidal pathogen Bacillus thuringiensis (Berliner), subsp. kurstaki (Btk) [105,106], and the SIT as part of an end game strategy, once the other tactics had lowered population densities [107]. Released moths were dispersed up to five kilometers, and 17% of irradiated males released were recaptured [100].…”

Section: Successful Application Of the Sit/is Against Lepidopteranmentioning

confidence: 99%

Advances and Challenges of Using the Sterile Insect Technique for the Management of Pest Lepidoptera

Marec

Vreysen

2019

Insects

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Over the past 30 years, the sterile insect technique (SIT) has become a regular component of area-wide integrated pest management (AW-IPM) programs against several major agricultural pests and vectors of severe diseases. The SIT-based programs have been especially successful against dipteran pests. However, the SIT applicability for controlling lepidopteran pests has been challenging, mainly due to their high resistance to the ionizing radiation that is used to induce sterility. Nevertheless, the results of extensive research and currently operating SIT programs show that most problems with the implementation of SIT against pest Lepidoptera have been successfully resolved. Here, we summarize the cytogenetic peculiarities of Lepidoptera that should be considered in the development and application of SIT for a particular pest species. We also discuss the high resistance of Lepidoptera to ionizing radiation, and present the principle of derived technology based on inherited sterility (IS). Furthermore, we present successful SIT/IS applications against five major lepidopteran pests, and summarize the results of research on the quality control of reared and released insects, which is of great importance for their field performance. In the light of new research findings, we also discuss options for the development of genetic sexing strains, which is a challenge to further improve the applicability of SIT/IS against selected lepidopteran pests.

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Section: Successful Application Of the Sit/is Against Lepidopteranmentioning

confidence: 99%

Advances and Challenges of Using the Sterile Insect Technique for the Management of Pest Lepidoptera

Marec

Vreysen

2019

Insects

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“…These results were then compared with the nominal dose needed to kill 50% of PAM larvae (LD 50 ) measured using standard bioassay techniques (e.g. Richardson et al 2005). If the interaction between host plant species and Btk efficacy is due to differential deposition on different plant species, then there should be a strong correlation between measured deposition and LD 50 .…”

Section: Discussionmentioning

confidence: 99%

Effects of host plant characteristics on spray deposition

Gous¹,

Richardson²

2007

NZPP

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Previous studies have shown that the effect of Bacillus thuringiensis var kurstaki (Btk) on painted apple moth (PAM; Teia anartoides Walker) efficacy varies significantly depending on the host plant species This study tested the hypothesis that host plant architecture influenced deposition of aerially applied Btk and its consequent efficacy against PAM Laboratory experiments demonstrated that the architecture of six host plants had a significant influence on Btk dose per unit leaf area and dose per unit leaf weight However the large host plant effect on PAM mortality from Btk could not be explained in terms of variation in the amount of spray intercepted

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“…Populations of these moths decreased to as little as 1% that of previous years. However, some areas with heavier vegetation cover had less success (Charles et al 2005, Richardson et al 2005). Transgenic Bt cotton crops have also been used in India, China, South Africa, Mexico, and Argentina, to control some lepidopteran and coleopteran invasive insect pest species (Qaim 2009, Krishna and Qaim 2012).…”

Section: Chemical Pesticidesmentioning

confidence: 99%

Invasive Insects: Management Methods Explored

McLaughlin

Dearden

2019

Journal of Insect Science

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Invasive insect species can act as a plague across the globe, capable of vast expansion and rapid, proliferate reproduction. The spread of pathogens of serious diseases such as malaria and Zika virus and damages to agricultural crops number some of the afflictions invasive insects provide to humans alone. Additionally, an escape from predators can fail to keep invasive insects in check, providing potential threats such as extra resource competition to native species when insects invade. A variety of methods are employed to combat these invasive species, each with their own varying levels of success. Here, we explore the more traditional methods of invasive insect pest control, such as pesticides and biological control. In lieu of several unintended consequences resulting from such practices, we suggest some should be abandoned. We evaluate the potential of new techniques, in particular, those with a genetic component, regarding the costs, benefits and possible consequences of implementing them. And finally, we consider which techniques should be the focus of future research, if we truly wish to manage or even eradicate invasive insects in their introduced lands.

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Evaluating the benefits of doseresponse bioassays during aerial pest eradication operations

Cited by 9 publications

References 5 publications

Advances and Challenges of Using the Sterile Insect Technique for the Management of Pest Lepidoptera

Advances and Challenges of Using the Sterile Insect Technique for the Management of Pest Lepidoptera

Effects of host plant characteristics on spray deposition

Invasive Insects: Management Methods Explored

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