INFLUENCE OF COMPANION PLANTS ON OVIPOSITION OF IMPORTED CABBAGEWORM, <i>PIERIS RAPAE</i> (LEPIDOPTERA: PIERIDAE), AND CABBAGE LOOPER, <i>TRICHOPLUSIA NI</i> (LEPIDOPTERA: NOCTUIDAE), ON COLLARD PLANTS

Latheef, M. A.; Ortiz, J. H.

doi:10.4039/ent1151529-11

Cited by 13 publications

(3 citation statements)

References 10 publications

(15 reference statements)

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“…(1992), who found that T . ni larval numbers were similar in intercropped broccoli and broccoli monoculture, and Latheef & Ortiz (1983), who found more T. ni eggs on cabbage surrounded by various companion plants. Broccoli plants intercropped with YSC supported the lowest number of T .…”

Section: Discussionmentioning

confidence: 76%

“…Other studies have shown responses only under specific conditions (Theunissen, 1994). Most research indicates that A. rapae colonization is higher when host plants are grown with non‐host vegetation (Root, 1973; Cromartie, 1975; Latheef & Ortiz, 1983; Macguire, 1984; Bach & Tabashnik, 1990; Zhao et al ., 1992; Finch & Kienegger, 1997). Furthermore, some companion plants encourage colonization of Brassica plants by A. rapae , resulting in higher numbers and damage (Latheef & Irwin, 1979).…”

Section: Discussionmentioning

confidence: 99%

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Lepidopteran pest populations and crop yields in row intercropped broccoli

Hooks

Johnson

2002

Agri and Forest Entomology

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1 To determine how the presence of non-host plants impact populations of lepidopteran pests and yield of broccoli, Brassica oleracea var. italica L., broccoli was intercropped with tomato, Lycopersicon esculentum Miller, or yellow sweetclover (YSC), Melilotus officinalis L., and compared with broccoli monoculture grown at two densities (high and low). 2 During a 1997 study, numbers of early instar imported cabbageworm, Artogeia rapae L., were greater in broccoli monoculture compared with intercropped plantings. In contrast, late instar A. rapae numbers were significantly higher in intercropped broccoli during most of the season, indicating greater survival of early instar stages in intercropped habitats. 3 Cabbage looper, Trichoplusia ni HuÈ bner, eggs and larvae were more abundant in broccoli monoculture than intercropped broccoli in 1997. In addition, T. ni populations were found at significantly lower levels in broccoli-YSC compared with broccoli-tomato habitat throughout the season. 4 During a 1998 study, numbers of early and late A. rapae instars were greater in intercropped broccoli on most sampling dates. 5 The mean percentages of harvested broccoli heads infested with insects and associated frass were higher in monocultures than intercropped treatments in 1997. Additionally, a significantly lower number of contaminants were found in the crowns of broccoli harvested from broccoli-YSC (YSC) compared with broccoli-tomato (tomato) habitat. However, broccoli heads were significantly smaller in intercropped habitats. 6 Variations in insect responses and challenges to using crop diversification as a management tool are discussed.

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Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Lepidopteran pest populations and crop yields in row intercropped broccoli

Hooks

Johnson

2002

Agri and Forest Entomology

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“…Incorporation of intercropping into brassica integrated pest management (IPM) has reduced abundance of many important pests (Root, 1973; Latheef & Ortiz, 1983; Endersby & Morgan, 1991). Broad et al.…”

Section: Introductionmentioning

confidence: 99%

Effects of integrating companion cropping and nitrogen application on the performance and infestation of collards by Brevicoryne brassicae

Mutiga

Gohole

Auma

2010

Entomologia Exp Applicata

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Sustainable management of cabbage aphids, Brevicoryne brassicae (L.) (Hemiptera: Aphididae), is a major goal for collard, Brassica oleracea (L.) var. acephala (Brassicaceae), growers globally. Host finding ability of insect pests is significantly affected by diversified cropping systems, and this approach is being utilized currently as a pest management tool. Soil nutrition and its interaction with the cropping systems could have a significant effect on the general performance of collards and the infestation by cabbage aphids. In a search for a sustainable cabbage aphid control, a two‐season field experiment was carried out with two intercrops, collards and chilli, Capsicum frutescens (L.) (Solanaceae), and collards and spring onions, Allium cepa (L.) (Alliaceae), and a collard monoculture. For each of the cropping systems, nitrogen (N) was applied to the soil as a top‐dress at 20, 25, 30, and 35 g per collard plant. The response factors monitored were collard yield (fresh weight) and aphid infestation on collards. Spring onion‐collard intercrop had the lowest aphid density and the highest yield. Collard monoculture had the highest aphid infestation and the lowest yield. High levels of N led to increased infestation of collards by aphids, but also led to a significant increase in the yield of collards. Significant interactions between the N rates and the cropping systems were observed on some sampling dates, with the highest yield being realized under a combination of spring onion‐collard intercrop at a N rate of 30 g per plant. High aphid density led to a decrease in the yield of collards. It was concluded that with a spring onion‐collard intercrop, the soil N level could be raised from the blanket rate of 20–30 g per plant and this would lead to an increase in yield.

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Pests of Cruciferous Crops

Finch¹,

Thompson²

1992

Vegetable Crop Pests

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INFLUENCE OF COMPANION PLANTS ON OVIPOSITION OF IMPORTED CABBAGEWORM, PIERIS RAPAE (LEPIDOPTERA: PIERIDAE), AND CABBAGE LOOPER, TRICHOPLUSIA NI (LEPIDOPTERA: NOCTUIDAE), ON COLLARD PLANTS

Cited by 13 publications

References 10 publications

Lepidopteran pest populations and crop yields in row intercropped broccoli

Lepidopteran pest populations and crop yields in row intercropped broccoli

Effects of integrating companion cropping and nitrogen application on the performance and infestation of collards by Brevicoryne brassicae

Pests of Cruciferous Crops

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