Economic Injury Levels and Binomial Sampling Program for Lesser Cornstalk Borer (Lepidoptera: Pyralidae) in Seedling Grain Sorghum

Cheshire, J. M.; Funderburk, Joe; Zimet, D. J.; Mack, T. P.; Gilreath, M. E.

doi:10.1093/jee/82.1.270

Cited by 5 publications

(4 citation statements)

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“…Crop damage that was not attributed to insect pests has been described by Cheshire et al (1989) for sorghum, and Labatte & Got (1993) for corn, and was interpreted as the result of environmental effects on host plants. Crop damage that was not attributed to insect pests has been described by Cheshire et al (1989) for sorghum, and Labatte & Got (1993) for corn, and was interpreted as the result of environmental effects on host plants.…”

Section: Resultsmentioning

confidence: 99%

“…Damage to peanuts other than by M. matrida grubs, could be due to other peanut pests such as the earwig Labidura riparia (Pallas) (Dermaptera). Crop damage that was not attributed to insect pests has been described by Cheshire et al (1989) for sorghum, and Labatte & Got (1993) for corn, and was interpreted as the result of environmental effects on host plants.…”

Section: Resultsmentioning

confidence: 99%

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Economic injury levels for the scarabaeid Maladera matrida infesting peanut fields in Israel

Harari

Ben‐Yakir

Chen

et al. 2001

Entomologia Exp Applicata

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Control of Maladera matrida Argaman (Coleoptera: Scarabaeidae) in peanut fields in the Negev region, Israel, relies on the 'rule of thumb' use of insecticides. The aim of this study was to develop an economic injury level (EIL) for a more judicious application of insecticides. Field studies were conducted from 1991 to 1993 to determine the relationship between the cumulative number of different immature stages and the damage of peanuts (Arachis hypogaea L.). Observed damage to peanut yield was found to relate best to second-and third-instars (white grubs). This was supported by grub infestation experiments on potted peanut plants. Three different EIL levels for second-and third-instars of M. matrida were established in connection with the peanut plant developmental stages as follows: an average of 13 grubs per soil sample (25 by 25 by 60 cm) taken during the first 3 weeks of nut development, of 4 grubs per soil sample during week 4 to 6, and of 1.5 grubs per soil sample from week 7 until harvest.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Economic injury levels for the scarabaeid Maladera matrida infesting peanut fields in Israel

Harari

Ben‐Yakir

Chen

et al. 2001

Entomologia Exp Applicata

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“…Presence/absence sampling is a special case of binomial sampling in which the cutoff value is zero. This type of sampling has been widely used for insect scouting (Cheshire et al 1989;Legg et al 1994;Wilson and Room 1983). Gold et al (1996) proposed a weed scouting method that uses binomial random sampling with the assumption of an underlying negative binomial distribution of weed quadrat counts.…”

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confidence: 99%

An economic analysis of binomial sampling for weed scouting

et al. 2000

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Full-count random sampling has been the traditional method of obtaining weed densities. Currently it is the recommended scouting procedure when using HERB, a herbicide selection decision aid. However, alternative methods of scouting that are quicker and more economical need to be investigated. One possibility that has been considered is binomial sampling. Binomial sampling is the procedure by which density is estimated from the number of random quadrats in which the count of individuals is equal to or less than a specified cutoff value. This sampling method has been widely used for insect scouting. There has also been interest in using binomial sampling for weed scouting. However, an economic analysis of this sampling method for weeds has not been performed. In this paper, the results of an economic analysis using simulations with binomial sampling and the HERB model are presented. Full-count sampling was included in the simulations to provide a benchmark for comparison. The comparison was made in terms of economic losses incurred when the estimated weed density obtained from sampling was inaccurate and a herbicide treatment was selected that did not maximize profits. These types of losses are referred to as opportunity losses. The opportunity losses obtained from the simulations indicate that in some situations binomial sampling may be a viable economic alternative to full-count sampling for fields with weed populations that follow a negative binomial distribution, assuming no prior knowledge of weed densities or negative binomial k values.

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“…Economic injury levels have been determined and a binomial sampling program developed for LCB infestations in seedling grain sorghum (5). Although this sampling program was efficient and technically feasible, the cost of sampling exceeded the cost of prophylactic treatment with currently available insecticides.…”

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confidence: 99%

Economic Benefits of Selected Granular Insecticides for Control of Lesser Cornstalk Borer in Nonirrigated Peanut1

Gilreath¹,

Funderburk²,

Gorbet³

et al. 1989

Peanut Science

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Selected prophylactic applications of granular insecticides were evaluated during 1985,1986, and 1987 in North Florida for efficacy against lesser cornstalk borer (LCB), Erclsmopulpils lignosellus (Zeller), effects on peanut seed yield and quality, and net economic return. Chlorpy-rifos 15G, ethoprop 15G, and fonofos 10G were applied as band treatments over the row at various rates and times during the growing season. Dichloropropene was applied for separation of nematode effects alone and in combination with selected insecticides as an injection treatment 6 or 7 days before planting. Mean percentage of peanut plants infested with LCB larvae did not exceed 5% in any treatment, including the control, in any year. Mean densities ofemerging LCB adults estimated from over-the-rowwire traps did not exceed 1.2. moths per meter of row 'The research was supported in part by a Cooperative Agreement No. 5843YK-7-0034 between the USDA-ARS and the University of Florida.from early flowering until one month after scheduled harvest in any treatment during the study. No differences in LCB densities were detected among treatments. However, several treatments significantly improved peanut seed yield or quality in individual years and resulted in economic returns greater than the costs of treatment.

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Economic Injury Levels and Binomial Sampling Program for Lesser Cornstalk Borer (Lepidoptera: Pyralidae) in Seedling Grain Sorghum

Cited by 5 publications

References 0 publications

Economic injury levels for the scarabaeid Maladera matrida infesting peanut fields in Israel

Economic injury levels for the scarabaeid Maladera matrida infesting peanut fields in Israel

An economic analysis of binomial sampling for weed scouting

Economic Benefits of Selected Granular Insecticides for Control of Lesser Cornstalk Borer in Nonirrigated Peanut1

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