A novel approach: <i>Beauveria bassiana</i> granules applied to nursery soil for management of rice water weevils in paddy fields

Lee, Se Jin; Skinner, Margaret; Parker, Bruce L.

doi:10.1002/ps.3817

Cited by 13 publications

(12 citation statements)

References 23 publications

(36 reference statements)

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“…Moreover, the growth of fungi in the medium supplemented with chitin resulted in conidia with better quality compared to chitinfree medium. Carbon and Nitrogen have the ability to increase the formation of mycelium and germination of conidia (Guerrero et al 2007;Hou et al 2013;Kim et al 2014). The highest production of conidia in B. bassiana in this study was shown in P9 treatment.…”

Section: Discussionmentioning

confidence: 49%

The virulence improvement of Beauveria bassiana in infecting Cylas formicarius modulated by various chitin based compounds

Saputro

Prayogo²,

Rohman

et al. 2019

Biodiversitas

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Saputro TB, Prayogo Y, Rohman FL, Alami NH. 2019. The virulence improvement of Beauveria bassiana in infecting Cylas formicarius modulated by various chitin based compounds. Biodiversitas 20: 2486-2493. Sweet potato (Ipomoea batatas L.) is one of alternative carbohydrate source with an important role in food production, animal feed industries, and as raw materials for other derivatives. However, severe losses are constantly occured in its production due to a notorious pest known as sweet potato weevil (Cylas formicarius). The chemical insecticides commonly used to treat the pest, but have not been efficient in eliminating C.formicarius. Beauveria bassiana is well known as a biological control agent, has been identified to effectively eliminate the pest. The aim of this research is to observe the optimum concentration of several chitin-based compounds in improving the virulence of B. bassiana. The research was conducted by the addition of chitin from various sources -insects, crustaceans and mollusk shells in a growth medium of B. Bassiana. Moreover, conidia produced by B.bassiana was exposed to C.formicarius to investigate the mortality rate of this insect. The results showed four different characteristics of colonies -velvety, wooly, pellicular, and farinaceous. The 1% chitin from Tellina sp, (P9), was found to be the best treatment which increased the growth of the colony diameter attaining 6.7cm in 20 days, increased the conidia viability that reaches 93.5%. In addition, the highest mortality percentage of C. formicarius was 91.67% in P9 at 6 days after infection. Overall, this research gave new potential sources of chitin that can be applied in improving the virulence of B. Bassiana in eliminating C. formicarius.

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Section: Discussionmentioning

confidence: 49%

The virulence improvement of Beauveria bassiana in infecting Cylas formicarius modulated by various chitin based compounds

Saputro

Prayogo²,

Rohman

et al. 2019

Biodiversitas

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“…There are some studies in which granular formulations of B. bassiana have been successfully applied for the control of soil pests, highlighting the preferability of this control method compared with the application of more common products, such as wettable powders or suspension concentrates (Kim et al, 2014b). Moreover, the Puyehue pyroclastic rock has been to replace perlite in the elaboration of substrates for greenhouse vegetable production because it is safe for plant growth (Schalamuk et al, 2014b), an important aspect that should be tested before its use in a formulation (Leggett et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

VOLCANIC MATERIALS AS CARRIERS FOR THE FORMULATION OF MYCOINSECTICIDES USING THE FUNGUS Beauveria bassiana

Schalamuk

Scorsetti

et al. 2016

Cienc. Inv. Agr.

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V.E. Sy, S. Schalamuk, A.C. Scorsetti, and I.L. Botto. 2016. Volcanic materials as carriers for the formulation of mycoinsecticides using the fungus Beauveria bassiana. Cien. Inv. Agr. 43(2):273-282. Improvements in the formulation of biological insecticides are crucial to increase their stability and competitiveness in the market. The aim of this work was to evaluate the use of volcanic materials with different hydric retention capacities to increase the thermotolerance of B. bassiana conidia. Two pyroclastic rocks and a zeolite clinoptilolite were selected for this study. In addition, a commercial silica gel was used due to its reported capacity to increase conidial thermotolerance. Dry conidia were mixed with the materials to obtain a 2% w/w granular formulation, while conidial powder alone served as the control. Mixtures were stored at room temperature for 30 days and then exposed to 50 ºC for two hours, and the viability was measured before and after the thermal exposure. No significant decrease in viability was observed for conidia stored with any of the pyroclastic materials, while the germination was reduced by 10, 17 and 23% for unformulated conidia, conidia stored with silica gel and conidia stored with zeolite, respectively. From these results, a pyroclastic rock was selected to test its capacity to maintain high viability under different temperatures (4, 25 and 35 ºC) and humidities (~0 and 20%). A decrease in viability was observed with an increase of temperature, and lower viability was also recorded in humid treatments, but only at 25 and 35 ºC.

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“…Incorporation of entomopathogenic fungi into potting soil using a solid-substrate culturing method or drenching the soil with a fungal suspension has shown significant efficacy against thrips (Ansari et al, 2007;Skinner et al, 2012). Millet-based granular formulations of entomopathogenic fungi, when applied to soil decreased rice water weevil, Lissorhoptrus oryzophilus populations up to 2 weeks after application (Kim et al, 2014). Lee et al (2017) reported 90% population reduction of WFT treated with granular formulations of B. bassiana 40 days after application.…”

Section: Introductionmentioning

confidence: 99%

Biological control of Western flower thrips, Frankliniella occidentalis using a self-sustaining granular fungal treatment

Davari

Parker

Sullivan

et al. 2021

Bull. Entomol. Res.

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Western flower thrips (WFT), Frankliniella occidentalis, is one of the most destructive pests of vegetables, fruits and ornamental crops worldwide, causing extensive damage by direct feeding of the crop and transmitting economically important viruses. Despite the successes of biocontrol agents to control WFT, more efficient and cost-effective ways must be found to encourage grower adoption of integrated pest management. A sustainable fungal treatment was developed to preserve fungal inoculum in potting soil and reduce thrips populations. Combining cooked, oven-dried millet with BotaniGard® (a commercial form of Beauveria bassiana strain GHA) to potting soil increased spore production and persistence of the fungus in the soil. In treated pots with millet, spore concentrations were 3–4 times greater after 30 days compared with spore yields at 10 days. The number of WFT adults was significantly lower in the marigold pots treated with GHA mix + millet than untreated controls, 12% and 10% in treated pots and 70% and 68% in untreated pots in sterile and non-sterile soil, respectively. Incorporation of millet in the potting mix enhanced the effect of the fungal treatments by providing a nutritive substrate on which the fungus could become established. This method is relatively inexpensive and easy for growers to use in greenhouses because granular formulations of B. bassiana are not commercially available.

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A novel approach: Beauveria bassiana granules applied to nursery soil for management of rice water weevils in paddy fields

Cited by 13 publications

References 23 publications

The virulence improvement of Beauveria bassiana in infecting Cylas formicarius modulated by various chitin based compounds

The virulence improvement of Beauveria bassiana in infecting Cylas formicarius modulated by various chitin based compounds

VOLCANIC MATERIALS AS CARRIERS FOR THE FORMULATION OF MYCOINSECTICIDES USING THE FUNGUS Beauveria bassiana

Biological control of Western flower thrips, Frankliniella occidentalis using a self-sustaining granular fungal treatment

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