scholarly journals Toxicity of Aromatic Plants and Their Constituents Against Coleopteran Stored Products Insect Pests

10.5772/36288 ◽  
2012 ◽  
Author(s):  
Soon-Il Kim ◽  
Young-Joon Ahn ◽  
Hyung-Wook Kwo
Keyword(s):  
Insect Pests ◽  
Stored Products ◽  
Aromatic Plants

scholarly journals Chemical Composition, Insecticidal Effect and Repellent Activity of Essential Oils of Three Aromatic Plants, Alone and in Combination, towards Sitophilus Oryzae L. (Coleoptera: Curculionidae)

2007 ◽  
Vol 2 (12) ◽  
pp. 1934578X0700201 ◽  
Author(s):  
Martin B. Ngassoum ◽  
Leonard S. Ngamo Tinkeu ◽  
Iliassa Ngatanko ◽  
Leon A. Tapondjou ◽  
Georges Lognay ◽  
...  
Keyword(s):  
Essential Oils ◽  
Insect Pests ◽  
Sitophilus Oryzae ◽  
Stored Products ◽  
Aromatic Plants ◽  
Repellent Effect ◽  
Insecticidal Effect ◽  
Northern Cameroon ◽  
The Impact ◽  
A Current

Essential oils of aromatic plants with insecticidal properties are nowadays considered as alternative insecticides to protect stored products from attack by insect pests. A combination of some of these plants in the granaries is a current practice in certain localities of northern Cameroon. The aim of the present work was to analyze the impact of the combinations of the essential oils of Vepris heterophylla (Rutaceae), Ocimum canum, and Hyptis spicigera (both Lamiaceae), the three most used local aromatic plants because of their insecticidal activity and their repellent effect on Sitophilus oryzae. The present work revealed that these plants are rich in monoterpenoids. The GC/MS analyses have shown that monoterpenoids represented 65.5% for H. spicigera, 92.1% for O. canum and 47.0% for V. heterophylla. The crude essential oil of O. canum was the most insecticidal with a LD50 of 42.9 ppm. The most repellent effect was obtained by a combination of the essential oils of H. spicigera and O. canum, with a repellent percentage at 77.5%. These results suggest a suitable strategy for pest management of stored products.

Insect Pest Management in Stored Products

2020 ◽  
Vol 31 (1) ◽  
pp. 24-35 ◽  
Author(s):  
Somiahnadar Rajendran
Keyword(s):  
Pest Management ◽  
Insect Pests ◽  
Insect Pest ◽  
Control Measures ◽  
Stored Products ◽  
Insect Pest Management ◽  
Insect Infestation ◽  
Combination Treatments ◽  
Agricultural Produce ◽  
Food Commodities

Insects are a common problem in stored produce. The author describes the extent of the problem and approaches to countering it. Stored products of agricultural and animal origin, whether edible or non-edible, are favourite food for insect pests. Durable agricultural produce comprising dry raw and processed commodities and perishables (fresh produce) are vulnerable to insect pests at various stages from production till end-use. Similarly, different animal products and museum objects are infested mainly by dermestids. Insect pests proliferate due to favourable storage conditions, temperature and humidity and availability of food in abundance. In addition to their presence in food commodities, insects occur in storages (warehouses, silos) and processing facilities (flour mills, feed mills). Insect infestation is also a serious issue in processed products and packed commodities. The extent of loss in stored products due to insects varies between countries depending on favourable climatic conditions, and pest control measures adopted. In stored food commodities, insect infestation causes loss in quantity, changes in nutritional quality, altered chemical composition, off-odours, changes in end-use products, dissemination of toxigenic microorganisms and associated health implications. The insects contribute to contaminants such as silk threads, body fragments, hastisetae, excreta and chemical secretions. Insect activity in stored products increases the moisture content favouring the growth of moulds that produce mycotoxins (e.g., aflatoxin in stored peanuts). Hide beetle, Dermestes maculatus infesting silkworm cocoons has been reported to act as a carrier of microsporidian parasite Nosema bombycis that causes pebrine disease in silkworms. In dried fish, insect infestation leads to higher bacterial count and uric acid levels. Insects cause damage in hides and skins affecting their subsequent use for making leather products. The trend in stored product insect pest management is skewing in favour of pest prevention, monitoring, housekeeping and finally control. Hermetic storage system can be supplemented with CO2 or phosphine application to achieve quicker results. Pest detection and monitoring has gained significance as an important tool in insect pest management. Pheromone traps originally intended for detection of infestations have been advanced as a mating disruption device ensuing pest suppression in storage premises and processing facilities; pheromones also have to undergo registration protocols similar to conventional insecticides in some countries. Control measures involve reduced chemical pesticide use and more non-chemical inputs such as heat, cold/freezing and desiccants. Furthermore, there is an expanding organic market where physical and biological agents play a key role. The management options for insect control depend on the necessity or severity of pest incidence. Generally, nonchemical treatments, except heat, require more treatment time or investment in expensive equipment or fail to achieve 100% insect mortality. Despite insect resistance, environmental issues and residue problems, chemical control is inevitable and continues to be the most effective and rapid control method. There are limited options with respect to alternative fumigants and the alternatives have constraints as regards environmental and health concerns, cost, and other logistics. For fumigation of fresh agricultural produce, new formulations of ethyl formate and phosphine are commercially applied replacing methyl bromide. Resistance management is now another component of stored product pest management. In recent times, fumigation techniques have improved taking into consideration possible insect resistance. Insect control deploying nanoparticles, alone or as carriers for other control agents, is an emerging area with promising results. As there is no single compound with all the desired qualities, a necessity has arisen to adopt multiple approaches. Cocktail applications or combination treatments (IGRs plus organophosphorus insecticides, diatomaceous earth plus contact insecticides, nanoparticles plus insecticides/pathogens/phytocompounds and conventional fumigants plus CO2; vacuum plus fumigant) have been proved to be more effective. The future of store product insect pest management is deployment of multiple approaches and/or combination treatments to achieve the goal quickly and effectively.

scholarly journals Fumigant Toxicity of Lavandula Stoechas L. Oil Against Three Insect Pests Attacking Stored Products

2010 ◽  
Vol 50 (1) ◽  
Author(s):  
Asgar Ebadollahi ◽  
Mohammad Safaralizadeh ◽  
Ali Pourmirza
Keyword(s):  
Insect Pests ◽  
Fumigant Toxicity ◽  
Stored Products ◽  
Lavandula Stoechas

Insect pests of stored products from Late Bronze Age Santorini, Greece

1991 ◽  
Vol 27 (3) ◽  
pp. 179-184 ◽  
Author(s):  
Eva Panagiotakopulu ◽  
P.C. Buckland
Keyword(s):  
Bronze Age ◽  
Insect Pests ◽  
Late Bronze Age ◽  
Stored Products

Diurnal Activity of Three Insect Pests of Stored Products

Nature ◽  
1943 ◽  
Vol 152 (3848) ◽  
pp. 133-134 ◽  
Author(s):  
R. F. EWER
Keyword(s):  
Insect Pests ◽  
Stored Products ◽  
Diurnal Activity

Insect Pests of Agriculture in Papua New Guinea. Part 1. Principles and Practice. Pests of Tree Crops and Stored Products

2003 ◽  
Vol 96 (4) ◽  
pp. 1367-1367
Author(s):  
Carl W. Schaefer ◽  
R. Kumar
Keyword(s):  
Papua New Guinea ◽  
Insect Pests ◽  
New Guinea ◽  
Stored Products ◽  
Tree Crops
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