Relationship Between the Tarnished Plant Bug and Deformed Cotton Plants12

Scales, A. L.; Furr, R. E.

doi:10.1093/jee/61.1.114

Cited by 23 publications

(16 citation statements)

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“…Cotton sown early and with a long growing period has much physiological shedding of surplus buds, which are beyond the capacity of the plant to ripen. In these circumstances an early insect attack may only depress the first pick of the season without affecting total yield (Scales & Furr, 1968) and the plants may show no increase in yield when treated with insecticides, though late-sown varieties with a shorter flowering period may do so (McKinlay & Geering, 1957).…”

Section: Time Of Attack Of Insectsmentioning

confidence: 99%

Insect infestations and their effects on the growth and yield of field crops: a review

Bardner

Fletcher

1974

Bull. Entomol. Res.

151

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A knowledge of the often complex relationship between insect populations and their effects on the yield-forming processes of crops is useful for assessing pest status and for devising methods of minimising the effects of infestation on yield. After a preliminary section on definition of terms, consideration is given to ways in which insects injure plants and crops, particularly annual crops. Investigations into the yield-forming processes of unattacked crops can often provide useful insights into the likely effect of insect injuries on yield. The differences between the characteristics of individuals and populations are discussed, both of insects attacking plants, and plants responding to the attacks of insects. The distribution of insects on plants and on crops and the effect that this has on damage is considered, as is the time and duration of the attack in relation to the growth cycle of the crop. The components of plant resistance to insect attack are then discussed, especially tolerance and the various ways in which plants and crops compensate for injury. The review concludes with an examination of the quantitative relationships between numbers of insects or injuries and their effects on yield. The generalised response is a sigmoid curve relating an upper and lower plateau of yield where changes in the numbers of insects or injuries have little effect. Most relationships conform to some part of this curve, though few show all its features.

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Section: Time Of Attack Of Insectsmentioning

confidence: 99%

Insect infestations and their effects on the growth and yield of field crops: a review

Bardner

Fletcher

1974

Bull. Entomol. Res.

151

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“…Damage to cotton caused by Lygus feeding can be highly variable, and observed square or boll losses are often inconsistent with estimates of Lygus populations (Rosenheim et al 2006). These inconsistencies complicate management decisions and hamper efforts to unambiguously elucidate Lygus and cotton interactions (Scales and Furr 1968, Gutierrez et al 1977, Mauney and Henneberry 1984, Leigh et al 1988. A source of variability proposed to explain the inconsistencies in Lygus-induced damage is behavioral differences among Lygus life-stages and gender (Rosenheim et al 2006).…”

mentioning

confidence: 99%

Laboratory Studies of Variations in Feeding Behaviors Among <I>Lygus hesperus</I> (Hemiptera: Miridae) of Different Gender and Reproductive States

Cooper

Spurgeon

2011

env. entom.

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“…Contrary to the Þndings of numerous trials that used released populations (Scales and Furr 1968, Jubb and Carruth 1971, natural populations of tarnished plant bugs feeding during the ßowering period had a signiÞcant impact on cotton yield. EILs for average conditions were estimated to be between 1.6 and 2.6 tarnished plant bugs per drop cloth (Fig.…”

Section: Discussionmentioning

confidence: 57%

“…Although published thresholds are in the range of one to three plant bugs per row-m on a drop cloth or eight to 15 plant bugs per 100 sweeps during the ßowering period (University of California 1996, Catchot 2008, Stewart et al 2008, Studebaker 2008, there is little research with controlled insect densities to support these recommendations. Scales and Furr (1968) found that weekly releases of 25 adults per 100 plants beginning at the Þrst week of ßowering caused no signiÞcant impact on total yield. However, yield for the second harvest was signiÞcantly reduced, indicating that squares developing during the ßowering period were damaged by the infestation.…”

mentioning

confidence: 95%

Tarnished Plant Bug (Hemiptera: Miridae) Thresholds and Sampling Comparisons for Flowering Cotton in the Midsouthern United States

Musser¹,

Catchot²,

Stewart³

et al. 2009

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The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois) (Hemiptera: Miridae), has become the primary target of foliar insecticides in cotton, Gossypium hirsutum L., throughout the Midsouth over the past several years. This prompted a reevaluation of existing action thresholds for flowering cotton under current production practices and economics. A trial was conducted at 19 locations throughout the Midsouth during 2006 and 2007. Threshold treatments ranged from a weekly automatic insecticide application to a very high threshold of 10 tarnished plant bugs per 1.5 row-m on a black drop cloth. Individually, all locations reached the lowest threshold, and eight locations had a significant yield loss from tarnished plant bugs. Across all locations, lint yield decreased 0.85 to 1.72% for each threshold increase of one tarnished plant bug per 1.5 row-m. Yield loss was most closely correlated to pest density during the latter half of the flowering period. The relationship between plant bug density or damage and yield was similar for drop cloth, sweep net, and dirty square sampling methods, but the correlations among these sampling methods were not high. Incorporating actual insecticide application data from the trial and average production and economic factors for Midsouth cotton, the economic threshold, if monitoring once per week, should be between 1.6 and 2.6 tarnished plant bugs per 1.5 row-m during the flowering period. More frequent monitoring or situations where insecticide applications are more efficacious may alter this threshold.

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Relationship Between the Tarnished Plant Bug and Deformed Cotton Plants12

Cited by 23 publications

References 0 publications

Insect infestations and their effects on the growth and yield of field crops: a review

Insect infestations and their effects on the growth and yield of field crops: a review

Laboratory Studies of Variations in Feeding Behaviors Among <I>Lygus hesperus</I> (Hemiptera: Miridae) of Different Gender and Reproductive States

Tarnished Plant Bug (Hemiptera: Miridae) Thresholds and Sampling Comparisons for Flowering Cotton in the Midsouthern United States

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