Efficiency and Economic Feasibility of Pest Control Systems in Watermelon Cropping

Lima, Carlos H O; Sarmento, Renato Almeida; Rosado, Jander Fagundes; Silveira, Márcio Antônio da; Santos, Gil Rodrigues dos; Neto, Marçal Pedro; Erasmo, Eduardo Andrea Lemus; Nascimento, Ildon Rodrigues do; Picanço, Marcelo Coutinho

doi:10.1603/ec13512

Cited by 19 publications

(15 citation statements)

References 19 publications

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“…When the pest population density reaches the economic injury level, the control and damage costs are equal . In decision‐making processes, the pest population density in crops is compared with the economic injury level . In this process, artificial control measures are only adopted when the pest density has the potential to reach the economic injury level .…”

Section: Introductionmentioning

confidence: 99%

“…In decision‐making processes, the pest population density in crops is compared with the economic injury level . In this process, artificial control measures are only adopted when the pest density has the potential to reach the economic injury level . One of the factors that influences the economic injury level is the price of the agricultural product (grain, fruit, etc.…”

Section: Introductionmentioning

confidence: 99%

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Economic injury levels and sequential sampling plans forFrankliniella schultzeiin watermelon crops

et al. 2016

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Economic injury levels and sequential sampling plans forFrankliniella schultzeiin watermelon crops

et al. 2016

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“…When there are outbreaks of a pest population, their densities may increase in a short period of time (Berryman 1987). These pest outbreaks can cause economic damage to crops if they are not controlled immediately (Lima et al 2014). In this situation, we must apply fast-acting insecticides of control (Galdino et al 2011;Silva et al 2011).…”

Section: Discussionmentioning

confidence: 99%

Toxicity of insecticides to Chrysodeixis includens and their direct and indirect effects on the predator Blaptostethus pallescens

Ramos

Sediyama

Queiroz

et al. 2017

J Applied Entomology

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The soybean looper Chrysodeixis includens (Lepidoptera: Noctuidae) is a pest of the soya bean, and increasing populations have been observed on several crops in Brazil. Control of this pest is accomplished using insecticides, particularly with new products recently launched in the market. The effectiveness of these insecticides against C. includens and their impact on natural enemies need further study. Therefore, this study aimed to determine the toxicity of nine insecticides for C. includens and their effects on the Blaptostethus pallescens. Toxicity was increased via the addition of an insecticide synergist, and behavioural changes in Blaptostethus pallescens, an anthocorid predator of C. includens, were assessed. Except for acephate, all other insecticides showed high toxicity to C. includens (mortality >80%). The estimated lethal time (LT 50 ) for C. includens was shorter for methomyl, cartap and spinosad than others six insecticides tested in this work. Chlorantraniliprole, chlorfenapyr, deltamethrin, flubendiamide, indoxacarb and spinosad showed selectivity for the predator B. pallescens and exhibited a lower toxicity to the predator than to C. includens. The detoxifying enzymes monooxygenase and glutathione S-transferase may be involved in the selectivity mechanisms of these insecticides for the predator based on the results obtained with the synergized insecticides. Only the insecticides cartap, indoxacarb and spinosad changed the behaviour of the predator B. pallescens. These three insecticides are repellent, and the predator avoids them. However, the predator tended to remain on the surface treated with flubendiamide longer. Our results suggest that the insecticides chlorfenapyr, chlorantraniliprole, flubendiamide, spinosad and indoxacarb are the most promising compounds for use against C. includens. These compounds also preserve populations of B. pallescens and allow more sustainable integrated pest management programmes.

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“…(Hemiptera: Geocoridae), Eriopis connexa (Coleoptera: Coccinellidae), and Orius sp. (Hemiptera: Anthocoridae) most frequently observed (Picanço et al 2007;Lima et al 2014).…”

Section: R E S E a R C Hmentioning

confidence: 99%

Factors Affecting Thrips (Thysanoptera: Thripidae) Population Densities in Watermelon Crops

Barbosa

Sarmento

Pereira

et al. 2019

Florida Entomologist

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Efficiency and Economic Feasibility of Pest Control Systems in Watermelon Cropping

Cited by 19 publications

References 19 publications

Economic injury levels and sequential sampling plans forFrankliniella schultzeiin watermelon crops

Economic injury levels and sequential sampling plans forFrankliniella schultzeiin watermelon crops

Toxicity of insecticides to Chrysodeixis includens and their direct and indirect effects on the predator Blaptostethus pallescens

Factors Affecting Thrips (Thysanoptera: Thripidae) Population Densities in Watermelon Crops

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