Comparison of Nine Clones of ‘Jewel’ Strawberry in Ontario and Nova Scotia

Hughes, Becky R.; Fisher, P.A.; Jamieson, Andrew

doi:10.1080/15538362.2012.698155

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…The crop is important in China and the United States and throughout much of Europe. The plant is adapted to a wide range of environments, with commercial production in areas with a cool or warm temperate climate, a cool or warm subtropical climate or a Mediterranean climate [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Global Warming on the Yields of Strawberry in Queensland: A Mini-Review

Menzel¹

2023

Horticulturae

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Light, temperature and rainfall affect the growth and yield of strawberry plants (Fragaria × ananassa Duch.). The objective of this review was to determine the impact of global warming on the yields of strawberry in a temperate (summer crop) and subtropical environment (winter crop) in southern Queensland, Australia. Information was collected on the changes in temperature over five decades in two locations in this area. The relationship between relative yield and temperature from published data was used to determine the impact of global warming on productivity in the two locations. Finally, the impact of elevated concentrations of CO2 and temperature on yield was examined from studies in the literature. The average daily mean temperature has increased by 2 °C over the season on the Sunshine Coast (winter crop) since 1967 (p < 0.001, R2 = 0.69). The impact of global warming has been less severe on the Granite Belt (summer crop), with a 1 °C increase in temperature (p < 0.001, R2 = 0.37). Information was collected from the literature on the yield in individual temperature regimes in an experiment and these data were compared with the maximum yield in the same experiment (relative yield). There was a negative linear relationship between relative yield and temperature in most of the published literature. The mean (± s.d. or standard deviation) estimate of the slope from the regression was −0.14 (± 0.14), the median was −0.11 and the range was from −0.51 to 0.11 (n = 14 studies). Increases in temperature were associated with a decrease in yield of 14% to 28% in the two areas in Queensland. The results of other research indicated that elevated concentrations of CO2 do not benefit productivity when combined with elevated temperatures. Further decreases in yield are expected in the next few decades in the absence of heat-tolerant cultivars or other mitigating strategies.

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Section: Introductionmentioning

confidence: 99%

Effect of Global Warming on the Yields of Strawberry in Queensland: A Mini-Review

Menzel¹

2023

Horticulturae

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“…Cyclamen mite numbers were low 6 weeks after application, likely remained low during autumn, and then were further reduced by winter conditions(Renkema et al 2022). Even though cyclamen mite numbers were close to or greater than nominal thresholds less than a week before harvesting started in spring 2023 (Government of Alberta 2008; Burrack and Teonnisson 2014), injury levels to fruit were still quite low (0.5 to less than 2%), and strawberry weight of about 9 g averaged over the harvest season is near normal for 'Jewel'(Hughes et al 2013). A spring acaricide application could be made or predatory mites could be introduced to prevent cyclamen mite populations from increasing (Tuovinen and Lindqvist 2010).…”

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confidence: 99%

Biopesticide transplant dips and foliar acaricide applications for control of cyclamen mite (Phytonemus pallidus) in strawberry.

Renkema

2024

Preprint

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Cyclamen mite (Phytonemus pallidus) causes injury to new growth of strawberry plants and is difficult to control because it is protected by folded leaves and plant crowns. Since cyclamen mite is easily transferred from strawberry nurseries to fruiting fields, dipping transplants in biopesticides may reduce initial populations. However, cyclamen mite numbers at 1 and 3 months-after-planting and yield and cyclamen mite injury to fruit in the following season did not differ among transplants immersed for 30 sec in Captiva® Prime, EcoTrol® EC, Landscape Oil, SuffOil-X® or Kopa Insecticidal Soap or the untreated control. Cyclamen mite is primarily controlled with foliar applications of acaricides, but there are few registered products. In greenhouse experiments, fenazaquin and pyridaben reduced cyclamen mite numbers by more than 90% in new leaves compared to the control, similar to that of the standard abamectin. New leaf injury ratings were reduced from 1 on average (scale of 0-3; 0 = no injury) pre-application to 0.25-0.5 for fenazaquin, pyridaben, and abamectin-treated plants compared to increasing to 2 for control plants 2 weeks after application. Spiromesifen and chlorfenapyr reduced cyclamen mite numbers in folded leaves in one greenhouse experiment. In the field, all acaricides reduced cyclamen mite numbers by 90-99% at 2- and 6-weeks post-application and by 75-90% at 10 months post-application. Abamectin and pyridaben resulted in 0.5-1.0% of strawberries with cyclamen mite damage compared to 3.0% for the control. All acaricides except chlorfenapyr improved strawberry yield and size. Overall, fenazaquin, pyridaben and spiromesifen should help diversify the chemical toolbox for cyclamen mite in field strawberry.

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Comparison of Nine Clones of ‘Jewel’ Strawberry in Ontario and Nova Scotia

Cited by 2 publications

References 14 publications

Effect of Global Warming on the Yields of Strawberry in Queensland: A Mini-Review

Effect of Global Warming on the Yields of Strawberry in Queensland: A Mini-Review

Biopesticide transplant dips and foliar acaricide applications for control of cyclamen mite (Phytonemus pallidus) in strawberry.

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