Side Effects of Insecticides on Natural Enemies and Possibility of Their Integration in Plant Protection Strategies

El-Wakeil, Nabil; Gaafar, Nawal; Sallam, Ahmed; Volkmar, Christa

doi:10.5772/54199

Cited by 70 publications

(55 citation statements)

References 165 publications

(135 reference statements)

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“…Cloyd (2012); Figuls et al (1999); Arnó and Gabarra (2011) Chrysopidae Wakeil et al (2013) move to year round production and to increase yield/ production per unit area, growers are increasingly using supplementary lighting in vegetable production and are extending the period of artificial lighting in ornamentals to continuous lighting in the case of rose production. By extending the photoperiod using supplemental lighting, diapause induction will be prevented in biological control agents that enter reproductive diapauses under short daylengths.…”

Section: Semiochemicalsmentioning

confidence: 99%

Approaches to conserving natural enemy populations in greenhouse crops: current methods and future prospects

Messelink¹,

Bennison

Alomar³

et al. 2014

BioControl

223

131

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Biological pest control in greenhouse crops is usually based on periodical releases of mass-produced natural enemies, and this method has been successfully applied for decades. However, in some cases there are shortcomings in pest control efficacy, which often can be attributed to the poor establishment of natural enemies. Their establishment and population numbers can be enhanced by providing additional resources, such as alternative food, prey, hosts, oviposition sites or shelters. Furthermore, natural enemy efficacy can be enhanced by using volatiles, adapting the greenhouse climate, avoiding pesticide side-effects and minimizing disrupting food web complexities. The special case of high value crops in a protected greenhouse environment offers tremendous opportunities to design and manage the system in ways that increase crop resilience to pest infestations. While we have outlined opportunities and tools to develop such systems, this review also identifies knowledge gaps, where additional research is needed to optimize these tools.

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Section: Semiochemicalsmentioning

confidence: 99%

Approaches to conserving natural enemy populations in greenhouse crops: current methods and future prospects

Messelink¹,

Bennison

Alomar³

et al. 2014

BioControl

223

131

View full text Add to dashboard Cite

show abstract

“…Moreover, the low specificity typical of these insecticides elicits undesirable effects on the beneficial fauna that usually regulate the populations of phytophagous and pest arthropods (El-Wakeil et al, 2013). A promising alternative that might replace or at least decrease the use of chemical insecticides is the use of biological control agents such as viruses, fungi, nematodes and bacteria (Lacey et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

VOLCANIC MATERIALS AS CARRIERS FOR THE FORMULATION OF MYCOINSECTICIDES USING THE FUNGUS Beauveria bassiana

Schalamuk

Scorsetti

et al. 2016

Cienc. Inv. Agr.

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V.E. Sy, S. Schalamuk, A.C. Scorsetti, and I.L. Botto. 2016. Volcanic materials as carriers for the formulation of mycoinsecticides using the fungus Beauveria bassiana. Cien. Inv. Agr. 43(2):273-282. Improvements in the formulation of biological insecticides are crucial to increase their stability and competitiveness in the market. The aim of this work was to evaluate the use of volcanic materials with different hydric retention capacities to increase the thermotolerance of B. bassiana conidia. Two pyroclastic rocks and a zeolite clinoptilolite were selected for this study. In addition, a commercial silica gel was used due to its reported capacity to increase conidial thermotolerance. Dry conidia were mixed with the materials to obtain a 2% w/w granular formulation, while conidial powder alone served as the control. Mixtures were stored at room temperature for 30 days and then exposed to 50 ºC for two hours, and the viability was measured before and after the thermal exposure. No significant decrease in viability was observed for conidia stored with any of the pyroclastic materials, while the germination was reduced by 10, 17 and 23% for unformulated conidia, conidia stored with silica gel and conidia stored with zeolite, respectively. From these results, a pyroclastic rock was selected to test its capacity to maintain high viability under different temperatures (4, 25 and 35 ºC) and humidities (~0 and 20%). A decrease in viability was observed with an increase of temperature, and lower viability was also recorded in humid treatments, but only at 25 and 35 ºC.

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“…Moreover, the type of chemical insecticide used in this study contained an organophosphate compound (dimethoate) whose damaging effect on Coccillenidae has been documented [16]. Chemical insecticides are known to affect them through ingestion of contaminated food, direct contact with the droplets, contaminated plant surfaces and the resultant effect is manifested in various ways such as the immediate disruption in the predatory behaviour, including a reduction in efficiency in locating and capturing of prey [17]. Their presence in both the unsprayed plots and those of the botanical insecticide plots is an indication of the relative harmlessness of this type of insecticide on them.…”

Section: Discussionmentioning

confidence: 99%

Assessment Of The Effects Of Time, Synthetic And Botanical Insecticides Spray Regimes On The Abundance Of Predators In Cowpea Production In Kebbi State Of Nigeria

Murna¹,

Koko²

2014

IOSRJAVS

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Side Effects of Insecticides on Natural Enemies and Possibility of Their Integration in Plant Protection Strategies

Cited by 70 publications

References 165 publications

Approaches to conserving natural enemy populations in greenhouse crops: current methods and future prospects

Approaches to conserving natural enemy populations in greenhouse crops: current methods and future prospects

VOLCANIC MATERIALS AS CARRIERS FOR THE FORMULATION OF MYCOINSECTICIDES USING THE FUNGUS Beauveria bassiana

Assessment Of The Effects Of Time, Synthetic And Botanical Insecticides Spray Regimes On The Abundance Of Predators In Cowpea Production In Kebbi State Of Nigeria

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