Effects of intercropping on maize stemborers and their natural enemies

Skovgård, Henrik; Päts, Peeter

doi:10.1017/s0007485300039407

Cited by 43 publications

(28 citation statements)

References 23 publications

(29 reference statements)

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“…Volatiles from nonhost plants may interfere with the attractiveness of focal plants, resulting in "olfactory masking" (Koschier, 2006). Female insects will spend more time searching for a suitable host plant in intercropping and so oviposit fewer eggs on the focal plants (Skovgård & Päts, 1996). Understanding the chemical interactions between plants and insects is of particular importance not only for environmentalists but also for the development of new strategies in plant protection based on the natural occuring phenomena (Agelopoulos et al, 1999).…”

Section: Mechanisms Explaining Reduced Pest Incidence In Intercroppingmentioning

confidence: 99%

Crop Diversification Affects Biological Pest Control

Marković

2013

AGR

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Crop monocultures encourage the multiplication and spread of pest insects on massive and uniform crop. Numerous studies have evaluated the impact of plant diversification on pests and beneficial arthropods population dynamics in agricultural ecosystems and provided some evidence that habitat manipulation techniques like intercropping can significantly influence pest control. This paper describes various potential options of habitat management and design that enhance ecological role of biodiversity in agroecosystems. The focus of this review is the application and mechanisms of biodiversity in agricultural systems to enhance pest management.

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Section: Mechanisms Explaining Reduced Pest Incidence In Intercroppingmentioning

confidence: 99%

Crop Diversification Affects Biological Pest Control

Marković

2013

AGR

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“…There have been a number of studies of the effectiveness of indigenous predators on several borer species in the past decade (30,31,93,103,162). Virtually all studies have concluded that indigenous predators are not able to keep stem borer populations below economic injury levels (31, 162).…”

Section: Predatorsmentioning

confidence: 99%

“…Studies in Kenya have concentrated both on the practice of intercropping cowpea with maize and sorghum and on the ways in which the developed systems could be adopted by small-scale farmers in eastern Africa (16,138,148,162). Most concluded that intercropping reduced the incidence of stem borers.…”

Section: Intercropping and Habitat Managementmentioning

confidence: 99%

Biology and Management of Economically Important Lepidopteran Cereal Stem Borers in Africa

Kfir

Overholt

Khan

et al. 2002

Annu. Rev. Entomol.

372

302

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▪ Abstract Cereals (maize, sorghum, millet, rice) are extremely important crops grown in Africa for human consumption. Of the various insect pests attacking cereal crops in Africa, lepidopteran stem borers are by far the most injurious. All 21 economically important stem borers of cultivated grasses in Africa are indigenous except Chilo partellus, which invaded the continent from India, and C. sacchariphagus, which has recently been found in sugarcane in Mozambique. C. partellus is competitively displacing indigenous stem borers in East and southern Africa. A parasitoid, Cotesia flavipes, was introduced from Pakistan for biological control of C. partellus and caused a 32–55% decrease in stem borer densities. This article is an attempt to summarize the status of knowledge about economically important cereal stem borers in Africa with emphasis on their distribution, pest status and yield losses, diapause, natural enemies, cultural control, host plant resistance, and biological control. Special attention is given to Busseola fusca and C. partellus, the most important pests of maize and grain sorghum.

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“…Concerning economy, positive results of intercropping have been reported by Steiner (1984), by Boguslawski (2002) and by Sullivan (2003). Concerning plant protection, intercropping with Fabaceae, did partly give a positive effect on the predators and parasitoids of insect pests (El Titi 1974), but partly the effect was low (Sovgaard and Pa¨ts 1996). But if plants were inflicted which produce volatile oils (Choi et al 2003), negative effects on the attack by pests are known, in stored products (e.g.…”

Section: Introductionmentioning

confidence: 99%

The infestation of Vicia faba L. (Fabaceae) by Aphis fabae (Scop.) (Homoptera: Aphididae) under the influence of Lamiaceae (Ocimum basilicum L. and Satureja hortensis L.)

2006

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AbtractThe system Vicia faba-Aphis fabae fabae was studied under the influence of Ocimum basilicum (basil) and Satureja hortensis, in a wind tunnel, in the greenhouse and in field experiments. In the wind tunnel at 20°C both Lamiaceae were deterrent for A. fabae, and S. hortensis proved to be more deterrent than O. basilicum. In experiments in the greenhouse at low temperatures (average minimum 14.6°C, average maximum 24.1°C), A. fabae colonised first and significantly more intense Vicia fabae (field beans) not surrounded by O. basilicum or S. hortensis. At high temperatures (average minimum 18.0°C, average maximum 38.5°C) this relation was inverted: Vicia faba surrounded by the two Lamiaceae were preferred for colonisation (Ocimum basilicum significantly). It showed that pots with Lamiaceae were no obstacle for the aphids to reach Vicia faba. In strip cropping in the field, the repellent effect of Ocimum basilicum proved to be stronger than of Satureja hortensis. In 2002 there was observed only a tendency of lower aphid attack of field beans intercropped with Lamiaceae, while in 2004 and 2005 the infestation of Vicia faba by Aphis fabae was significantly lower in plots intercropped with basil. In plots with Satureja hortensis as intercrop, Vicia faba were significantly lower infested, after 3 weeks. The differences between the results of the wind tunnel/greenhouse at low temperatures, and the field experiments concerning the deterrence by Satureja hortensis cannot be explained. But basing on our results with Ocimum basilicum and those published by other authors, it is recommended to follow up intercropping, after a sincere analysis in every case, in favour of agronomists.

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Effects of intercropping on maize stemborers and their natural enemies

Cited by 43 publications

References 23 publications

Crop Diversification Affects Biological Pest Control

Crop Diversification Affects Biological Pest Control

Biology and Management of Economically Important Lepidopteran Cereal Stem Borers in Africa

The infestation of Vicia faba L. (Fabaceae) by Aphis fabae (Scop.) (Homoptera: Aphididae) under the influence of Lamiaceae (Ocimum basilicum L. and Satureja hortensis L.)

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