Integrated Biological and Cultural Practices Can Reduce Crop Rotation Period of Organic Strawberries

Muramoto, Joji; Gliessman, Stephen R.; Koike, S. T.; Shennan, Carol; Bull, Carolee T.; Klonsky, Karen; Swezey, Sean L.

doi:10.1080/21683565.2013.878429

Cited by 14 publications

(3 citation statements)

References 31 publications

(34 reference statements)

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“…In contrast, the few growers we interviewed who used more diversified farming methods to control pathogens were much more satisfied with the results. Along with growers, field trial researchers have found effective pest suppression with rotations of plants with biofumigation properties, such as brassicas, along with cover crops and composting, especially in 3to 4-year cycles (Hodson and Lewis 2016;Lloyd 2015;Muramoto et al 2014). The problem, however, with any nonchemical alternative that requires growers to rotate strawberries with a lower value or no-value crop, especially over several years, is that lease costs are generally based on an expectation that strawberries will be grown on an annual basis, not be a minor crop in an integrated diversified system.…”

Section: Land Value Is Obstacle To Changementioning

confidence: 99%

Land access and costs may drive strawberry growers' increased use of fumigation

Guthman¹

2017

Calif Agr

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L ast year, 2016, marked the final phaseout of methyl bromide for use in strawberry production. By year's end, many of the pessimistic predictions about the California strawberry industry's future had not come to pass. Consumer costs had not increased to cover expected higher production costs (e.g., Carpenter et al. 2000; Norman 2005), nor had production substantially moved to Mexico, which, per Montreal Protocol rules, initially was granted a longer phaseout period than the United States (Carter et al. 2005; Goodhue et al. 2005). Indeed, both the overall production of strawberries and the rates of productivity continued to increase in California throughout the phaseout period, and prices for berries declined rather than rose (Mayfield and Norman 2012). Even in the last years of the phaseout, acres planted in strawberries held relatively steady-37,732 acres were planted in 2012 and 36,039 were planted in 2016, with little variation in between those years (California Strawberry Commission 2016). RESEARCH ARTICLE Land access and costs may drive strawberry growers' increased use of fumigation The phaseout of methyl bromide and increasing regulation of other fumigants did not decrease overall fumigant use in California strawberries. Here are some likely reasons why.

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Section: Land Value Is Obstacle To Changementioning

confidence: 99%

Land access and costs may drive strawberry growers' increased use of fumigation

Guthman¹

2017

Calif Agr

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“…This disease can spread rapidly in the field, especially under favorable environmental conditions, making it challenging to control [ 18 ]. Farmers typically use a combination of cultural practices, such as crop rotation, sanitation, resistant cultivars, and fungicides [ 19 ]. Among these management practices, chemical fungicides are commonly used for managing this disease, but their effectiveness is challenged by the increasing fungicide resistance of the pathogens.…”

Section: Introductionmentioning

confidence: 99%

Regioselective Claisen–Schmidt Adduct of 2-Undecanone from Houttuynia cordata Thunb as Insecticide/Repellent against Solenopsis invicta and Repositioning Plant Fungicides against Colletotrichum fragariae

Kurmanbayeva,

Ospanov,

Tamang

et al. 2023

Molecules

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The U.S. Department of Agriculture (USDA) has established research programs to fight the phytopathogen Colletotrichum fragariae and the invasive red imported fire ant, Solenopsis invicta. C. fragariae is known to cause anthracnose disease in fruits and vegetables, while S. invicta is known for its aggressive behavior and painful stings and for being the cause of significant damage to crops, as well as harm to humans and animals. Many plants have been studied for potential activity against C. fragariae and S. invicta. Among the studied plants, Houttuynia cordata Thunb has been shown to contain 2-undecanone, which h is known for its antifungal activity against Colletotrichum gloesporioides. Based on the mean amount of sand removed, 2-undecanone showed significant repellency at 62.5 µg/g, similar to DEET (N,N-diethyl-meta-toluamide), against S. invicta. The 2-Undecanone with an LC50 of 44.59 µg/g showed toxicity against S. invicta workers. However, neither H. cordata extract nor 2-undecanone had shown activity against C. fragariae despite their known activity against C. gloesporioides, which in turn motivates us in repositioning 2-undecanone as a selected candidate for a Claisen–Schmidt condensation that enables access to several analogs (2a–f). Among the prepared analogs, (E)-1-(3-methylbenzo[b]thiophen-2-yl)dodec-1-en-3-one (2b) and (E)-1-(5-bromothiophen-2-yl)dodec-1-en-3-one (2f) showed promising activity against C. fragariae, revealing a distinctive structural activity relationship (SAR). The generated analogs revealed a clear regioselectivity pattern through forming the C=C alkene bond at position C-1. These data open the window for further lead optimization and product development in the context of managing C. fragariae and S. invicta.

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“…Crop rotations are commonly used to suppress various diseases and, in the case of strawberries, rotations with V. dahliae non-host crops like broccoli can reduce the severity of Verticillium wilt (Muramoto et al 2014;Subbarao et al 2007). Unfortunately, more profitable rotation crops, like lettuce, are hosts and can increase the severity of Verticillium wilt in subsequent strawberry crops.…”

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confidence: 99%

The economic viability of suppressive crop rotations for the control of verticillium wilt in organic strawberry production

Michuda

Goodhue

Klonsky

et al. 2018

Agroecology and Sustainable Food Systems

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Soil-borne diseases and nitrogen availability are important limits on organic strawberry production. A trial using suppressive crop rotations to combat Verticillium wilt was conducted to see its effects on strawberry yields and net returns using a split-split-plot design. An ANOVA analysis was run to understand determinants of net returns. Results show that the suppression of wilt through the planting of non-host crops such as broccoli before the planting of strawberries can have significant effects on yield and net returns, and that suppressive crop rotations are potentially commercially viable.

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Integrated Biological and Cultural Practices Can Reduce Crop Rotation Period of Organic Strawberries

Abstract: A team of researchers conducted a replicated on-farm experiment

Cited by 14 publications

References 31 publications

Land access and costs may drive strawberry growers' increased use of fumigation

Land access and costs may drive strawberry growers' increased use of fumigation

Regioselective Claisen–Schmidt Adduct of 2-Undecanone from Houttuynia cordata Thunb as Insecticide/Repellent against Solenopsis invicta and Repositioning Plant Fungicides against Colletotrichum fragariae

The economic viability of suppressive crop rotations for the control of verticillium wilt in organic strawberry production

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