Physical Control in Greenhouses and Field Crops

Weintraub, Phyllis G.; Berlinger, Menachem J.

doi:10.1007/978-3-662-07913-3_12

Cited by 32 publications

(26 citation statements)

References 63 publications

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“…These insect nets also have indirect impacts on the behaviour of pests by modifying the visual and olfactory signals (Mazzi and Dorn 2012) À nets mask the crop, thus deterring pests that detect their prey via visual signals (Weintraub and Berlinger 2004). This netting technique can also be combined with other integrated pest management (IPM) strategies (Licciardi et al 2008), including the use of trap plants, repellent plants and biological control with beneficial organisms.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of insect nets for cabbage production and pest management depending on the net removal frequency and microclimate

Simon

Komlan

Adjaïto

et al. 2014

International Journal of Pest Management

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In Africa, synthetic pesticide applications are overly frequent and above labelled rates. We assessed the efficacy of an insect net physical control system on field cabbage (Brassica oleracea var. capitata) production in France and Benin. Various mesh sizes and netting removal frequencies were compared under contrasting climatic conditions. Studies under Mediterranean climatic conditions (spring season) compared two mesh sizes (0.73 mm and 1.6 mm). Studies under subequatorial climatic conditions (cool and hot seasons) tested nets of mesh size 0.4 mm and 0.9 mm used either as permanent cover, removed daily, or 3 days per week. The results showed that a fine mesh did not improve the netting efficacy against pests but had a major impact on the microclimate. In Mediterranean climatic conditions, the netting efficacy and beneficial microclimate improved crop yields. In subequatorial conditions, crop yields were lowest with permanent net protection due to high temperatures under the nets and poor aphid and Spodoptera littoralis control. Removing the nets 3 days per week was a good technical/economic trade-off, ensuring acceptable efficacy with minimal effects on the microclimate. (Résumé d'auteur

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Section: Introductionmentioning

confidence: 99%

Efficacy of insect nets for cabbage production and pest management depending on the net removal frequency and microclimate

Simon

Komlan

Adjaïto

et al. 2014

International Journal of Pest Management

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“…Whiteflies are difficult to control with insecticides because they feed and oviposit mainly on the abaxial surfaces of leaves (Sharaf, 1986) and because they are resistant to most classes of insecticides (Prabhaker et al, 1985;Palumbo et al, 2001;Horowitz et al, 2004;Nauen & Denholm, 2005). Physical methods could be used to manage the pest because they are compatible with other components of integrated pest management, have little impact on the environment, and do not rely on the use of pesticide, thereby, slowing the development of insecticide resistance (Weintraub & Berlinger, 2004).…”

Section: Introductionmentioning

confidence: 99%

Prevention of Whitefly Entry from a Greenhouse Entrance by Furnishing an Airflow-Oriented Pre-Entrance Room Guarded with Electric Field Screens

Nonomura¹,

Matsuda²,

Kakutani³

et al. 2014

JAS

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Two types of an electric field screen were used to exclude whiteflies from a greenhouse. Singly charged dipolar electric field screen had insulated conductor iron wires arrayed in parallel (ICW-layer), two earthed metal nets on both sides of the ICW-layer, and a direct current voltage generator. Screens were attached to the lateral windows of the greenhouse to repel whiteflies that approached the nets. To electrostatically guard the greenhouse entrance, doubly charged dipolar electric field screens (DD-screens) were used to capture whiteflies entering through the door. The ICWs, oppositely charged with equal voltages, were arrayed one after the other, and an insulator board or net was placed on one side of the ICW-layer. ICWs captured whiteflies entering an electric field of DD-screens. A small pre-entrance room was constructed at the entrance area, and three DD-screens (with yellow and gray board or gray net) were installed in the pre-entrance room taking into consideration the airflow inside the room, as most whiteflies were brought in by the air when the door was opened. Two DD-screens with the board were useful for directing the wind toward the wall into which the netted DD-screen was integrated. Insects were eliminated by this screen, and the pest-free air was circulated inside the greenhouse. The yellow-boarded DD-screen was highly attractive because of the photo-selective movement of the whiteflies and was effective for trapping the whiteflies when there was no wind. Our electrostatic method is effective at keeping the greenhouse pest-free throughout the entire period of tomato cultivation.

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“…Protection against aphids would not be enough if untreated nets were placed as a physical barrier alone in vent openings. A possible solution to this problem would be to reduce the size of the hole to 0.34–0.40 mm . One of the drawbacks of this approach could be the insufficient ventilation inside the enclosed structure .…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, there is an urgent need to develop alternatives under the scope of IPM. The use of physical barriers is an excellent method to reduce pest access to crops and impede disease transmission to plants . The selection of an appropriate insect screen depends on several factors: the thoracic size of the insect, the size and geometry of the hole and the way threads are interlaced.…”

Section: Introductionmentioning

confidence: 99%

Control of insect vectors and plant viruses in protected crops by novel pyrethroid-treated nets

et al. 2014

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Physical Control in Greenhouses and Field Crops

Cited by 32 publications

References 63 publications

Efficacy of insect nets for cabbage production and pest management depending on the net removal frequency and microclimate

Efficacy of insect nets for cabbage production and pest management depending on the net removal frequency and microclimate

Prevention of Whitefly Entry from a Greenhouse Entrance by Furnishing an Airflow-Oriented Pre-Entrance Room Guarded with Electric Field Screens

Control of insect vectors and plant viruses in protected crops by novel pyrethroid-treated nets

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