Antifeedant Activity of Constituents of Andrographis paniculata (Acanthaceae) against the Green Rice Leafhopper, Nephotettix cincticeps (Hemiptera: Cicadellidae)

Widiarta, I Nyoman; Hermawan, Wawan; Oya, Shingo; Nakajima, Shûhei; Nakasuji, Fusao

doi:10.1303/aez.32.561

Cited by 16 publications

(9 citation statements)

References 6 publications

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“…This effect was most profound 1 wk after (Nauen 1995, Devine et al 1996, Nauen and Elbert 1997, Widiarta et al 1997, Nauen et al 1998a, Boina et al 2009). In addition, our experiments documented that imidacloprid signiÞcantly increased the time spent resting as well as number of psyllid adults that rested.…”

Section: Discussionmentioning

confidence: 96%

Effects of Insecticides on Behavior of Adult Bactericera cockerelli (Hemiptera: Triozidae) and Transmission of Candidatus Liberibacter psyllaurous

Butler¹,

Byrne²,

Keremane³

et al. 2011

jnl. econ. entom.

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The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes (Solanum tuberosum L.) that can cause yield loss by direct feeding on crop plants and by vectoring a bacterial pathogen, Candidatus Liberibacer psyllaurous. Current pest management practices rely on the use of insecticides to control the potato psyllid to lower disease incidences and increase yields. Although many studies have focused on the mortality that insecticides can cause on potato psyllid populations, little is known regarding the behavioral responses of the potato psyllid to insecticides or whether insecticides can decrease pathogen transmission. Thus, the objectives of this study were to determine the effects of insecticides on adult potato psyllid behaviors, the residual effects of insecticides on potato psyllid behaviors over time, and effects of these insecticides on Ca. L. psyllaurous transmission. Insecticides tested included imidacloprid, kaolin particle film, horticultural spray oil, abamectin, and pymetrozine. All insecticides significantly reduced probing durations and increased the amount of time adult psyllids spent off the leaflets, suggesting that these chemicals may be deterrents to feeding as well as repellents. Nonfeeding behaviors such as tasting, resting, and cleaning showed variable relationships with the different insecticide treatments over time. The insecticides imidacloprid and abamectin significantly lowered transmission of Ca. L. psyllaurous compared with untreated controls. The implications of our results for the selection of insecticides useful for an integrated pest management program for potato psyllid control are discussed.

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Section: Discussionmentioning

confidence: 96%

Effects of Insecticides on Behavior of Adult Bactericera cockerelli (Hemiptera: Triozidae) and Transmission of Candidatus Liberibacter psyllaurous

Butler¹,

Byrne²,

Keremane³

et al. 2011

jnl. econ. entom.

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“…However, the mean waveform duration of NP per psyllid produced a significant interaction between treatment and time post-application. The anti-feedant effects of imidacloprid have been documented with the psyllid D. citri, the aphids Myzus persicae (Sulzer), Myzus nicotianae (Blackman), Schizaphis graminum (Rondani), the leafhopper Nephotettix cincticeps (Uhler), and the whitefly Bemisia tabaci (Gennadius) at lethal and sublethal doses (Nauen, 1995;Devine et al, 1996;Nauen & Elbert, 1997;Widiarta et al, 1997;Nauen et al, 1998;Isaacs et al, 1999;Boina et al, 2009;Costa et al, 2011;Serikawa et al, 2010). Research by Butler et al (2011) found that imidacloprid acted as a repellent to the potato psyllid and systemic application of imidacloprid significantly reduced Ca.…”

Section: Discussionmentioning

confidence: 99%

Feeding disruption of potato psyllid, Bactericera cockerelli, by imidacloprid as measured by electrical penetration graphs

Butler¹,

Walker

Trumble

2012

Entomologia Exp Applicata

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The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), is a serious pest of potatoes that can cause yield loss by direct feeding and by transmitting a bacterial pathogen, Candidatus Liberibacter psyllaurous (also known as Candidatus L. solanacearum), which is associated with zebra chip disease of this crop. Current pest management practices rely on the use of insecticides for control of potato psyllid to lower disease incidences and increase yields. Imidacloprid is typically applied at potato planting, and it remains unknown if imidacloprid has any effect on potato psyllid feeding behavior. Thus, our specific objectives of this study were to determine and characterize the effects of imidacloprid treatment (0.11 ml l−1) to potato plants on adult potato psyllid feeding behavior 1, 2, and 4 weeks post‐application. Electrical penetration graph (EPG) recordings of potato psyllid feeding revealed six EPG waveforms, which include non‐probing (NP), intercellular stylet penetration (C), initial contact with phloem tissue (D), salivation into phloem sieve elements (E1), phloem sap ingestion (E2), and ingestion of xylem sap (G). The number of NP events and the duration of individual NP events significantly increased on plants treated with imidacloprid compared with untreated controls. Potato psyllids exhibited significant decreases in the number of phloem salivation events on plants treated with imidacloprid. Waveform durations and waveform durations per event for E2 and G were significantly decreased for psyllids on plants treated with imidacloprid compared with untreated controls. These data suggest that the effective use of imidacloprid to reduce transmission of Ca. Liberibacter psyllaurous is related to the negative effects of imidacloprid on psyllid feeding.

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“…Alternatively, exposure to sublethal concentrations may increase fecundity by stimulating reproduction through hormoligosis or trophobiosis, which increases fitness 20. Previous authors have reported that exposure to or feeding on sublethal concentrations of imidacloprid reduces growth, survival and reproduction in many Hemipteran insect pests 21–30. In contrast, exposure to or feeding on plants treated with imidacloprid increased the fecundity of a predatory mite, Amblyseius victoriensis Womersley,31 increased fecundity and longevity of the two‐spotted spider mite, Tetranychus urticae Koch,32 and increased fecundity, larval weight and juvenile hormome III titer of the rice borer, Tryporyza incertulas (Walker) 33…”

Section: Introductionmentioning

confidence: 99%

“…Behavioral changes caused by exposure to or feeding on sublethal concentrations of an insecticide can also result in reduced feeding or searching behavior 19. For example, imidacloprid acts as an antifeedant for many Hemipteran insects, including aphids, whiteflies and green leafhoppers, at sublethal concentrations21–26, 28 and reduces acquisition and/or transmission of potato leafroll virus by green peach aphid, Myzus persicae (Sulzer) 28…”

Section: Introductionmentioning

confidence: 99%

Antifeedant and sublethal effects of imidacloprid on Asian citrus psyllid, Diaphorina citri

Boina

Onagbola

Salyani

et al. 2009

Pest Management Science

130

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Antifeedant Activity of Constituents of Andrographis paniculata (Acanthaceae) against the Green Rice Leafhopper, Nephotettix cincticeps (Hemiptera: Cicadellidae)

Cited by 16 publications

References 6 publications

Effects of Insecticides on Behavior of Adult Bactericera cockerelli (Hemiptera: Triozidae) and Transmission of Candidatus Liberibacter psyllaurous

Effects of Insecticides on Behavior of Adult Bactericera cockerelli (Hemiptera: Triozidae) and Transmission of Candidatus Liberibacter psyllaurous

Feeding disruption of potato psyllid, Bactericera cockerelli, by imidacloprid as measured by electrical penetration graphs

Antifeedant and sublethal effects of imidacloprid on Asian citrus psyllid, Diaphorina citri

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