Role of visual and olfactory stimuli in host finding of adult cabbage root flies, Delia radicum

Tuttle, A. F.; Ferro, D. N.; Idoine, Karen

doi:10.1111/j.1570-7458.1988.tb02279.x

Cited by 32 publications

(16 citation statements)

References 25 publications

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“…This fact has been exploited, with varying success, in monitoring and trapping programs for insect pests such as R. pomonella (Prokopy et al 1987, 1990, Rull and Prokopy 2003, Popillia japonica Newman (Klein 1981), and Diabrotica barberi Smith and Lawrence (Ladd et al 1984, Metcalf andLampman 1989), just to name a few. In some cases, trap catch increased manyfold when these two host-locating modalities were combined (Wallbank and Wheatley 1979, Tuttle et al 1988, Teulon et al 1999. In general, however, we know very little about how these two modalities interact during host location.…”

Section: Discussionmentioning

confidence: 99%

Visual Cues Enhance the Response of Lygus hesperus (Heteroptera: Miridae) to Volatiles from Host Plants

Blackmer¹,

Cañas

2005

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Studies were conducted to examine the behavioral response of Þfth-instar and adult Lygus hesperus Knight (Heteroptera: Miridae) to odors associated with a host plant (alfalfa) when presented singly or in combination with a visual plant cue (530 nm, green light-emitting diode [LED]). Bioassays were conducted in a modiÞed Y-tube olfactometer, where incoming air was Þltered and humidiÞed before passing through chambers that held plant/conspeciÞc treatments. A LED, placed behind an organdy screen at the end of one arm of the Y-tube, simulated a visual plant cue. In agreement with our previous Þndings, Þfth-instar and adult female L. hesperus were attracted to plant/conspeciÞc odor combinations, but adult males were not. Independently, the LED also was attractive to immature and adult female L. hesperus, and for all life stages, a much larger percentage of the bugs walked to the extreme end of the Y-tube when the visual cue was present. When visual and volatile cues were presented simultaneously, responses by both immature and adult (male and female) L. hesperus were signiÞcantly enhanced. Plant/conspeciÞc treatments that had been marginally acceptable when only volatile stimuli were available showed the greatest enhancement in response with the addition of the visual cue. Presentation of visual and volatile cues together led to a mean increase in the percentage of bugs that walked to the extreme end of the Y-tube (nymphs, 36.6%; females, 23.4%; males, 26.1%). Results are discussed in terms of stage-speciÞc responses and how these behavioral differences will likely play a role in developing effective trapping and monitoring systems for this important pest.

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Section: Discussionmentioning

confidence: 99%

Visual Cues Enhance the Response of Lygus hesperus (Heteroptera: Miridae) to Volatiles from Host Plants

Blackmer¹,

Cañas

2005

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“…In a visual host finding, and shape recognition study on the cabbage root fly, using four shapes of yellow sticky traps as plant models, Tuttle et al (1988) indicated that yellow discs or crosses at ground level baited with allyl isothiocyanate effectively monitored female cabbage root fly. The main factors affecting female landing were suggested to be the colour of substrate, height above the ground, presence of host volatiles in the vicinity, visual prominence, and size of the total area of 'attractive' colour.…”

Section: Cabbage and Turnip Root Flies (Delia Radicum And D Floralis)mentioning

confidence: 99%

Defence mechanisms of Brassicaceae: implications for plant-insect interactions and potential for integrated pest management. A review

Ahuja

Rohloff

Bones

2010

Agron. Sustain. Dev.

203

155

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-Brassica crops are grown worldwide for oil, food and feed purposes, and constitute a significant economic value due to their nutritional, medicinal, bioindustrial, biocontrol and crop rotation properties. Insect pests cause enormous yield and economic losses in Brassica crop production every year, and are a threat to global agriculture. In order to overcome these insect pests, Brassica species themselves use multiple defence mechanisms, which can be constitutive, inducible, induced, direct or indirect depending upon the insect or the degree of insect attack. Firstly, we give an overview of different Brassica species with the main focus on cultivated brassicas. Secondly, we describe insect pests that attack brassicas. Thirdly, we address multiple defence mechanisms, with the main focus on phytoalexins, sulphur, glucosinolates, the glucosinolate-myrosinase system and their breakdown products. In order to develop pest control strategies, it is important to study the chemical ecology, and insect behaviour. We review studies on oviposition regulation, multitrophic interactions involving feeding and host selection behaviour of parasitoids and predators of herbivores on brassicas. Regarding oviposition and trophic interactions, we outline insect oviposition behaviour, the importance of chemical stimulation, oviposition-deterring pheromones, glucosinolates, isothiocyanates, nitriles, and phytoalexins and their importance towards pest management. Finally, we review brassicas as cover and trap crops, and as biocontrol, biofumigant and biocidal agents against insects and pathogens. Again, we emphasise glucosinolates, their breakdown products, and plant volatile compounds as key components in these processes, which have been considered beneficial in the past and hold great prospects for the future with respect to an integrated pest management.Brassicas / insect pests / chemical ecology / trophic levels / glucosinolates / isothiocyanates / defence mechanisms / biocontrol / trap crops / integrated pest management

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“…Research has shown that color and shape are important cues for Delia spp. to Þnd host plants (Harris and Miller 1983, Tuttle et al 1988. Moreover, reßectance of visible and UV light can act as a repellent to numerous insect species (Chalfant et al 1977, Schalk et al 1979, Prokopy and Owens 1983, Conway et al 1989), including D. radicum (Liburd et al 1998).…”

Section: Discussionmentioning

confidence: 96%

Nonwoven Fiber Barriers for Control of Cabbage Maggot and Onion Maggot (Diptera: Anthomyiidae)

Hoffmann

Kuhar

Baird

et al. 2001

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We investigated the use of nonwoven fiber barriers for control of cabbage maggot, Delia radicum (L.), and onion maggot, D. antiqua (Meigen). The barriers consist of arrangements of minute fibers loosely intertwined in "web" form. Results from a greenhouse experiment showed that manually applied graphite fibers placed at the base of broccoli plants reduced the number of D. radicum eggs by 64-98%, and that efficacy increased with greater fiber density. Using a melt extrusion process, we devised a method for on-site creation of nonwoven fibers of ethylene vinyl acetate (EVA). In field trials with broccoli and onion plants, EVA fibers significantly reduced the number of cabbage and onion maggots infesting plants. Fiber barriers provided comparable control to standard insecticide applications. The addition of blue, yellow, red, or black pigments, as well as optical brighteners that absorb UV light did not enhance fiber efficacy. Incorporation of capsaicin olfactory repellent to EVA also did not enhance fiber efficacy. Nonwoven fiber barriers may offer an alternative to insecticides for control of cabbage maggot and onion maggot and possibly other insect pests. Additional research is needed to improve the application process and to identify economically feasible and biodegradable compounds for fibers.

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Role of visual and olfactory stimuli in host finding of adult cabbage root flies, Delia radicum

Cited by 32 publications

References 25 publications

Visual Cues Enhance the Response of <I>Lygus hesperus</I> (Heteroptera: Miridae) to Volatiles from Host Plants

Visual Cues Enhance the Response of <I>Lygus hesperus</I> (Heteroptera: Miridae) to Volatiles from Host Plants

Defence mechanisms of Brassicaceae: implications for plant-insect interactions and potential for integrated pest management. A review

Nonwoven Fiber Barriers for Control of Cabbage Maggot and Onion Maggot (Diptera: Anthomyiidae)

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