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Acyrthosiphon pisum; Pisum sativum; biotypes; cultivars; genome-wide association study; genomics; haplotypes; insect pests; insect resistance; insecticides; integrated pest management; linkage disequilibrium; loci; nitrogen; peas; phenotype; quantitative trait loci
Abstract:
... KEY MESSAGE: A genome-wide association study for pea resistance against a pea-adapted biotype and a non-adapted biotype of the aphid, Acyrthosiphon pisum, identified a genomic region conferring resistance to both biotypes. In a context of reduced insecticide use, the development of cultivars resistant to insect pests is crucial for an integrated pest management. Pea (Pisum sativum) is a crop of ma ...
... Greenbug (Schizaphis graminum Rondani) is a destructive insect pest that not only damages plants, but also serves as a vector for many viruses. Host plant resistance is the preferred strategy for managing greenbug. Two greenbug resistance genes, Rsg1 and Rsg2, have been reported in barley. To breed cultivars with effective resistance against various greenbug biotypes, additional resistance genes a ...
... Callosobruchus maculatus (F.) is a common insect pest of stored leguminous seeds including faba bean (Vicia faba L.) in tropical and subtropical areas. In this study, differences in the seed resistance of seven faba bean cultivars (Barakat, Feiz, Luz de Otono, Mahta, Saraziri, Shadan, and Shakhbozi) to C. maculatus were studied using its oviposition preference, life history and life table paramete ...
... A replicated trial, planted in 2011, compared nine primocane-fruiting raspberry cultivars for suitability to commercial production in the U.S. Intermountain West. Factors evaluated included annual yield, fruit size, fruiting season, consumer preference, leaf chlorophyll content, and cane infestation by raspberry horntail, a common insect pest of raspberries in northern Utah. ‘Joan J’ was the highe ...
... Sorghum is one of the most dominant crops grown in Ethiopia as a staple food. However, the contribution of improved sorghum varieties is very low as farmers have no sufficient information about agronomic practices and economic importance of the released sorghum varieties that lead inadequate adoption of improved varieties. This research work has been conducted for identifying best sorghum varietie ...
... Effect of the ethyl acetate seed extracts of two cultivars of broccoli, Brassica oleracea Italica, Palam Samridhi (PS) and Palam Vichitra (PV) on growth, development and nutritional physiology of an economically important insect pest, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) was evaluated by conducting bioassays and nutritional assays. The insect larvae were fed on diets amended with ...
DNA; Nilaparvata lugens; Oryza officinalis; Oryza sativa; alleles; cultivars; entomology; insect pests; loci; polymerase chain reaction; resistance genes; wild rice; South East Asia
Abstract:
... The brown planthopper, Nilaparvata lugens Stål (Hemiptera: Delphacidae), is a serious insect pest of rice (Oryza sativa L.). It is known that several wild rice and some Indica Group rice cultivars carry brown planthopper resistance genes. The brown planthopper resistance locus BPH1 has been used for the development of brown planthopper resistance rice in Southeast Asia. Bph1 and Bph2 are considere ...
... Simple, single‐species approaches in distributional ecology leave open questions of possible roles of biotic interactions. We sought to understand impacts of climate change on current and future potential distributions of Olea europaea sensu lato (host) and Bactrocera oleae (parasite) in Europe, the Middle East, and Africa (EMEA), taking into account potential interspecific interactions. We used e ...
... Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), is an economically important insect pest of maize in most African countries, including Ghana. Hence, this study tested the efficacy of selected biorational and synthetic insecticides for the control of FAW in two maize cultivars in Ghana. The cultivars, Ewul-boyu and Wang-dataa, and the insecticides, neem seed oil (NSO) (azadirachtin), Agoo ...
Mayetiola destructor; antibiosis; cultivars; durum wheat; insect pests; instars; larvae; temperature
Abstract:
... Hessian fly, Mayetiola destructor (Say) is a destructive insect pest occurring in many wheat growing areas of the world. The most effective management option for controlling Hessian fly is the use of resistant wheat cultivars carrying specific resistance genes. However, wheat resistance genes to Hessian fly are affected by temperature. Two Moroccan cultivars ‘Chaoui’ and ‘Marouane’ and three ICARD ...
Spodoptera frugiperda; Zea mays; corn; cultivars; food security; genes; host plants; insect pests; introgression; pest management; quarantine; Sub-Saharan Africa
Abstract:
... Food security and livelihoods in sub-Saharan Africa (SSA) are threatened by the recent arrival of the fall armyworm (FAW) (Spodoptera frugiperda J.E. Smith) (Lepidoptera: Noctuidae), a prolific, polyphagous insect pest of 350 host-plant species, including maize (Zea mays L.). In the major maize-producing countries in SSA, annual yield losses attributable to FAW are between US$ 2.5 and 6.2 billion. ...
... Sitophilus granarius (L.) is considered to be one of the major pests causing damage to cereal grain stored in silos and granaries. Using traditional methods (synthetic insecticides, mechanical, or physical methods) to control this pest is either ineffective or dangerous to people and nature. It is, therefore, necessary to develop new cultivars of cereals that will be distinguished by a high natura ...
... KEY MESSAGE: The foxglove aphid resistance gene Raso2 from PI 366121 was fine-mapped to 77 Kb region, and one candidate gene was identified. The foxglove aphid (FA: Aulacorthum solani Kaltenbach) is an important insect pest that causes serious yield losses in soybean. The FA resistance gene Raso2 from wild soybean PI 366121 was previously mapped to a 13 cM interval on soybean chromosome 7. However ...
... The amounts and types of epicuticular waxes on onion (Allium cepa) leaves affect the severity of feeding damage by onion thrips (Thrips tabaci), a serious insect pest of onion. Onion plants with light green leaves are referred to as “glossy” and accumulate less epicuticular wax relative to the blue–green (“waxy”) foliage of wild-type onion. The onion cultivar Odourless Greenleaf (OGL) has visually ...
Fusarium; biomass; corn; cultivars; disease resistance; inoculum; insect pests; insect resistance; leaf blight; plant pathology; viruses; Europe; Northern European region
Abstract:
... Maize productivity is threatened by global climate change. Climate change scenarios suggest that north‐western (NW) Europe will get warmer and drier during the main crop‐growing period. In general, more northerly regions will benefit, whereas more southerly regions will suffer suboptimal rain‐fed farming conditions. In these latter regions in particular, the resulting probable lower realized on‐fa ...
Muhammad Yasir Ali; Tayyaba Naseem; Muhammad Arshad; Ijaz Ashraf; Muhammad Rizwan; Muhammad Tahir; Misbah Rizwan; Samy Sayed; Muhammad Irfan Ullah; Rashad Rasool Khan; Muhammad Bilal Amir; Mingzhen Pan; Tong-Xian Liu
Brassica oleracea; Capsicum annuum; Chinese cabbage; Glebionis coronaria; Myzus persicae; Solanum melongena; biotic potential; cabbage; computer software; cultivars; eggplants; fecundity; host plants; hot peppers; insect pests; integrated pest management; life history; life tables; population growth; population size; progeny; statistical analysis
Abstract:
... The green peach aphid, Myzus persicae Sulzer (Hemiptera: Aphididae), a polyphagous insect pest is a major threat to a wide range of crops worldwide. Aiming to evaluate the life history traits of M. persicae, feeding on different host plants, we used five vegetables: cabbage, Brassica oleracea (Brassicaceae); chinese cabbage, B. rapa (Brassicaceae); chili pepper, Capsicum annum (Solanaceae); crown ...
... BACKGROUND: The viviparous aphid Aphis craccivora Koch (Hemiptera: Aphididae) is a serious threat to the crop yield of Lathyrus sativus L. (Fabaceae), commonly known as grass pea. The synthetic insecticides applied to control this insect pest are not safe for the environment. Hence, it is necessary to find volatile organic compounds (VOCs) from two cultivars [BIO L 212 Ratan (BIO) and Nirmal B‐1 ( ...
... The Hessian fly (HF, Mayetiola destructor) is one of the destructive pests of wheat (Triticum aestivum L.) worldwide. Resistant cultivars can effectively minimize wheat damage due to this insect pest. To identify new quantitative trait loci (QTL) for HF resistance, a population of recombinant inbred lines (RILs) was developed from a cross between the HF-resistant wheat cultivar ‘Chokwang’ and susc ...
... Many strains of Plant Growth Promoting Rhizobacteria (PGPR) have the ability to induce the systemic resistance in several pathosystems. This study investigates the protective effect of four strains belonging to Bacillus subtilis (Bs168, Bs2500, Bs2504 and Bs2508) on grapevine roots of the sensitive local grapevine cultivar “Helwani” against phylloxera. Fresh roots were immersed in bacterial suspen ...
... Several methods have been advocated for screening of potential transgenic events that use either diet incorporation of toxins or excised plant parts expressing the pure protein (toxin) against insect pests of crops. However, considering the field level variations in transgenic plant expression due to abiotic environmental factors; mainly the temperature and moisture stress, it was a long felt need ...