Yield Response of Pumpkin and Winter Squash to Simulated Cucumber Beetle (Coleoptera: Chrysomelidae) Feeding Injury

Hoffmann, Michael P.; Ayyappath, Ramesh; Kirkwyland, Jonathan J.

doi:10.1603/0022-0493-93.1.136

Cited by 17 publications

(11 citation statements)

References 10 publications

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“…Mechanical removal of plant parts may not adequately simulate herbivore damage, and thus normal compensatory reactions might not occur (Hendrix 1979, Hoffman et al 2000. It is unknown whether cranberry weevil saliva deposited during clipping of the pedicel affects the cranberry plantÕs response, as has been shown in other plant systems for some insects and other animals (Belsky 1986).…”

Section: Discussionmentioning

confidence: 99%

“…It is unknown whether cranberry weevil saliva deposited during clipping of the pedicel affects the cranberry plantÕs response, as has been shown in other plant systems for some insects and other animals (Belsky 1986). However, when reporting on simulated feeding damage on cucurbits, Hoffman et al (2000) pointed out that simulated injury allows for accurate quantiÞcation of injury and is a Þrst step in characterizing yield loss.…”

Section: Discussionmentioning

confidence: 99%

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Compensatory Response of Cranberry to Simulated Damage by Cranberry Weevil (<I>Anthonomus musculus</I> Say) (Coleoptera: Curculionidae)

Long¹,

Averill²

2003

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Cranberry weevil (Anthonomus musculus Say), a key pest of cranberry (Vaccinium macrocarpon Aiton) in Massachusetts, deposits eggs in unopened flowers and often severs the flower pedicel from the peduncle. The compensatory response of cranberry to simulated cranberry weevil damage was investigated by severing the pedicel of unopened flowers with scissors. When intensity of damage was varied on the cultivar Early Black, complete compensation was observed at three of four sites after removal of 33% of a peduncle's unopened flowers, but a approximately 37% decline in number of fruit and weight of berries per peduncle was observed when 67% of unopened flowers were removed. When timing of damage was varied at sites planted to the cultivar Howes, no differences were observed when 50% of unopened flowers were clipped from a peduncle early versus late in preblossom peduncle growth. However, both the early and late clipping treatments resulted in a 30% decrease in the number and weight of berries per peduncle when compared with the no clipping treatment. These results suggest that cranberry has the ability to tolerate low to moderate levels of weevil damage, but a substantial data base will be required to determine any appropriate changes in threshold recommendations.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Compensatory Response of Cranberry to Simulated Damage by Cranberry Weevil (<I>Anthonomus musculus</I> Say) (Coleoptera: Curculionidae)

Long¹,

Averill²

2003

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“…Although feeding damage alone can significantly impact plant stand and yield in commercial cucurbit plantings (Hoffmann et al 2000), the primary motivation for using insecticides against cucumber beetles in the high-risk geographic regions is the threat of bacterial wilt transmission (Burkness and Hutchison 1998). Although feeding damage alone can significantly impact plant stand and yield in commercial cucurbit plantings (Hoffmann et al 2000), the primary motivation for using insecticides against cucumber beetles in the high-risk geographic regions is the threat of bacterial wilt transmission (Burkness and Hutchison 1998).…”

Section: A N a G E M E N Tmentioning

confidence: 99%

Bacterial Wilt of Cucurbits: Resurrecting a Classic Pathosystem

et al. 2015

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Bacterial wilt threatens cucurbit crop production in the Midwestern and Northeastern United States. The pathogen, Erwinia tracheiphila, is a xylem-limited bacterium that affects most commercially important cucurbit species, including muskmelon, cucumber, and squash. Bacterial wilt is transmitted and overwintered by striped and spotted cucumber beetles. Since there are few commercially available resistant cultivars, disease management usually relies on use of insecticides to suppress vector populations. Although bacterial wilt was initially described more than 100 years ago, our knowledge of disease ecology and epidemiology advanced slowly for most of the 20th century. However, a recent wave of research has begun to fill in missing pieces of the bacterial wilt puzzle. This article—the first review of research toward understanding the cucurbit bacterial wilt pathosystem—recounts early findings and updates our understanding of the disease cycle, including pathogen and vector biology. We also highlight research areas that could lead to more efficient and ecologically based management of bacterial wilt.

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“…In fact, leaves play an important role in the production of food substances through the process of photosynthesis; hence defoliation might be detrimental to plant growth, survival and crop production. Hoffmann (2000) showed that removal of 20% of the leaf area of Cucurbita pepo L. significantly reduced the weight of marketable fruit. Agunloye (1986) reported that foliar damage by the flea beetle Podogrica on Abelmoschus esculentus L. Moench in Nigeria led to as much as a 50% reduction in yield.…”

Section: Introductionmentioning

confidence: 99%

Influence of herbivorous insects on the production of Lagenaria siceraria (Molina) Standley (Cucurbitaceae)

Anzara¹,

Koffi²,

Coulibaly³

et al. 2015

Afr. J. Plant Sci.

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The production of indigenous cucurbits remains very low in tropical zones, mainly due to herbivorous insect damage. This study was conducted in Manfla located in the centre of Côte d'Ivoire at 400 km from Abidjan to evaluate the impact of herbivorous insects on foliar damage and agronomic parameters of Lagenaria siceraria (Molina) Standley (Cucurbitaceae). Our study revealed that nine insect species belonging to four families and three orders were responsible for foliar damage. The leaves were perforated, shredded and eaten away. The extent of foliar damage was estimated for each accession during three consecutive cropping seasons. For the oleaginous gourd accessions NI227, NI219 and NI180, over 75% of the leaf surface was regularly destroyed. For the bottle gourd accessions NI431 and NI432 and the oleaginous gourd accession NI354, leaf surface damage was less than 25%. Thirteen accessions were intermediate between the two groups of accessions cited above. There was no significant difference between fruits weight and seed weight for accessions NI431, NI432, NI354 and NI434, whether or not plants were treated with a broad spectrum cypermethrin based-insecticide (Cypercal 50 EC). However, these parameters differed significantly for accessions NI227, NI219 and NI180.

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Yield Response of Pumpkin and Winter Squash to Simulated Cucumber Beetle (Coleoptera: Chrysomelidae) Feeding Injury

Cited by 17 publications

References 10 publications

Compensatory Response of Cranberry to Simulated Damage by Cranberry Weevil (<I>Anthonomus musculus</I> Say) (Coleoptera: Curculionidae)

Compensatory Response of Cranberry to Simulated Damage by Cranberry Weevil (<I>Anthonomus musculus</I> Say) (Coleoptera: Curculionidae)

Bacterial Wilt of Cucurbits: Resurrecting a Classic Pathosystem

Influence of herbivorous insects on the production of Lagenaria siceraria (Molina) Standley (Cucurbitaceae)

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