Using Greenhouse Microclimate to Improve the Efficacy of Insecticide Application for Frankliniella occidentalis (Thysanoptera: Thripidae)

Shipp, J. L.; Zhang, Y.

doi:10.1093/jee/92.1.201

Cited by 16 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Scarce investigations on temperature dependence of the insecticide efficacy usually mostly show a 294 S. Trdan et al negative correlation between temperature and mortality rate of the insects (Heimbach & Baloch, 1994;Pimentel et al, 2004), although there are some references which prove the opposite to be true (Chandler et al, 1991;Shipp & Zhang, 1999). For obvious reasons the results of similar investigations on other insects, which can considerably differ from Colorado potato beetle, cannot and should not be considered relevant without some serious consideration.…”

Section: Resultsmentioning

confidence: 99%

Effect of temperature on efficacy of three natural substances to Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Trdan

Cirar

Bergant

et al. 2007

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

View full text Add to dashboard Cite

Azadirachtin, refined rape oil and slaked lime Á three natural substances with insecticidal potential Á were tested under laboratory conditions for their efficacy against larvae and adults of Colorado potato beetle, Leptinotarsa decemlineata, at 158C, 208C, and 258C. General statistical analysis (all developmental stages and all insecticidal substances taken into account) was performed on the results of the mortality rates of the individuals and no statistically significant differences between the temperatures were observed on the fifth day after application. At all temperatures, the influence of insecticidal substances in question as well as the interaction between the insecticidal substance and the developmental stage of the pest on mortality rates were significant. The individual statistical analysis (a specified developmental stage of the pest at a specified temperature) revealed the maximum efficacy of the refined rape oil at 158C and 208C, the adults being the most sensitive developmental stage (mortality rate about 90%). Other substances tested were less effective, and in general the mortality rate of either larvae or adults did not exceed 50%. In the case that the efficacy of the refined rape oil in controlling the population of the adults of the Colorado potato beetle is confirmed also in field trials, this could be the basis for a better strategy in controlling the overwintered Colorado potato beetles on potato.

show abstract

Section: Resultsmentioning

confidence: 99%

Effect of temperature on efficacy of three natural substances to Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Trdan

Cirar

Bergant

et al. 2007

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

View full text Add to dashboard Cite

show abstract

“…In contrast, during the hot months, the environmentally friendly substances were ineffective. Earlier studies had also shown that synthetic insecticides became less effective during periods of hot weather in the open field (Guillebeau et al 1989), but became more effective at higher temperatures under glasshouse conditions (Shipp and Zhang 1999).…”

Section: Discussionmentioning

confidence: 96%

Field efficacy of three insecticides against cabbage stink bugs (Heteroptera: Pentatomidae) on two cultivars of white cabbage

Trdan

Žnidarčić

Valič

2006

International Journal of Pest Management

View full text Add to dashboard Cite

In 2002In -2003, three insecticidal substances were tested for their ability to reduce the damage inflicted on plants of white cabbage by cabbage stink bugs, Eurydema ventrale and E. oleracea (Heteroptera: Pentatomidae). The two cultivars of cabbage tested were: the early cultivar, 'Tucana F 1 ', which requires about 60 days from transplanting to harvest, and the mid-early cultivar 'Hinova F 1 ', which requires about 120 days. In a field experiment, the growth and damage on cabbage plants sprayed with malathion (two sprays), potassium soap [potassium salts of fatty acids] (five sprays), and refined rape oil (five sprays) were compared to the growth and damage on unsprayed plants. Potassium soap and refined rape oil are considered to be environmentally friendly insecticides. In 2002, plants of the cultivar 'Tucana', that were treated with malathion had the highest plant weights [PW], head weights [HW], HW/PW ratio, and the lowest number of frame leaves. In the drier year of 2003, there were no significant differences in damage between the three treatments for either cultivar, except during the last assessment done on 13 August. In 2003, plants of 'Tucana', treated with potassium soap, had the highest PW and HW. The significantly lowest PW and HW values were recorded from the untreated plants. For the cultivar 'Hinova', the PW and HW were heaviest from the plants treated with malathion. In both years, the HW/PW ratio of Hinova (mid-early cultivar) did not differ between treatments, while the plants of 'Tucana' (early cultivar) treated with malathion had the highest ratio. Of the three substances tested, malathion was the most effective at reducing the damage on white cabbage plants caused by cabbage stink bugs. However, in an attempt to reduce the use of synthetic insecticides, instead of malathion, we recommend the use of refined rape oil (49 EUR/ha), as it is as effective as potassium soap (81 EUR/ha), but much cheaper.

show abstract

“…Thrips are thigmotactic with a preference for hiding in tight spaces (Lewis, 1973). In some crops, this behaviour is thought to reduce the efficacy of insecticides for thrips control as the thrips are less exposed to spray applications (Shipp & Zhang, 1999). Increased activity through exposure to MI may expose a greater proportion of thrips to spray applications.…”

Section: Discussionmentioning

confidence: 99%

Methyl isonicotinate induces increased walking and take‐off behaviour in western flower thrips, Frankliniella occidentalis

Tol¹,

Bruin²,

Butler

et al. 2012

Entomologia Exp Applicata

View full text Add to dashboard Cite

Timely detection of western flower thrips (WFT), Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), is important to help prevent economic damage to crops. Coloured traps are commonly used for thrips monitoring and their efficacy can be markedly improved with the addition of semiochemicals such as methyl isonicotinate (MI). However, the behavioural response of thrips to these compounds is poorly understood. In leaf/petal disc laboratory experiments the effect of MI on adult female WFT was examined with respect to walking and take‐off behaviour. Clean air or air with MI was blown over the leaf/petal discs at an angle of 30° via a glass pipette connected to a wash bottle containing a cotton dental roll with or without a defined amount of MI. At airspeeds of 0.6–1.2 m s−1 and at doses of 1, 10, 50, 100, and 1000 μl (equivalent to indicative concentrations of 1.7, 4.5, 7.3, 8.8, and 14.9 ng MI l−1 air blown over the leaf discs), WFT spent a greater proportion of time walking on chrysanthemum leaf discs in the presence of MI than the non‐attractive thrips compound β‐caryophyllene or clean air. Western flower thrips showed a dose‐dependent take‐off response to the thrips attractant MI, but not to β‐caryophyllene (virtually no take‐off). At 100 μl of MI (8.8 ng l−1 air), WFT spent a greater proportion of time walking on host plant tissue than in clean air, depending on plant disc substrates. Furthermore, WFT took off more often from plant discs exposed to an air current containing MI than from those exposed to clean air. Western flower thrips exposed to MI took off at a similar rate from chrysanthemum leaves, chrysanthemum flower petals, and sweet pepper leaves, but much less readily from bean leaves. The results show that MI stimulates walking and take‐off behaviour for adult female WFT under these experimental conditions and these responses are dose‐dependent and mediated by the host plant. These results are placed in the context of previous research on the behavioural response of thrips to semiochemicals and their implications for thrips pest management are discussed.

show abstract

Using Greenhouse Microclimate to Improve the Efficacy of Insecticide Application for Frankliniella occidentalis (Thysanoptera: Thripidae)

Cited by 16 publications

References 0 publications

Effect of temperature on efficacy of three natural substances to Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Effect of temperature on efficacy of three natural substances to Colorado potato beetle, Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Field efficacy of three insecticides against cabbage stink bugs (Heteroptera: Pentatomidae) on two cultivars of white cabbage

Methyl isonicotinate induces increased walking and take‐off behaviour in western flower thrips, Frankliniella occidentalis

Contact Info

Product

Resources

About