Tractor Speed and Spray Application Volume in Tall Pecan Trees: Effect on Spray Coverage at Different Heights in the Canopy
Scab (caused by Venturia effusa) is the most important disease of pecan in the southeastern U.S.A. The yield losses in susceptible cultivars, combined with costs of control amount to tens of millions of dollars annually. It is known that fungicide coverage from air-blast sprayers declines with height in the canopy, and conversely, disease severity increases. […]
Transcriptome Analysis Reveals Significant Difference in Gene Expression and Pathways Between Two Peanut Cultivars under Al Stress
Aluminum (Al) toxicity is an important factor in limiting peanut growth on acidic soil. The molecular mechanisms underlying peanut responses to Al stress are largely unknown. In this study, we performed transcriptome analysis of the root tips (0-1 cm) of peanut cultivar ZH2 (Al-sensitive) and 99-1507 (Al-tolerant) respectively. Root tips of peanuts that treated with […]
Salicylic acid and kaolin effects on pomological, physiological, and phytochemical characters of hazelnut (Corylus avellana) at warm summer condition
Climate change and population increase are two challenges for crop production in the world. Hazelnut (Corylus avellana L.) is considered an important nut regarding its nutritional and economic values. As a fact, the application of supporting materials as foliage sprays on plants will decrease biotic and abiotic stresses. In this study, the effects of salicylic […]
Microbial load and Prevalence of Escherichia coli, and Salmonella spp. in Macadamia Nut Production Systems
This study evaluated the potential impact of environmental factors and harvesting practices on microbial load of macadamia nuts. Three farms located in the main macadamia nut production regions including Mbombela (A), Barberton (B) and White River (C) areas in Mpumalanga Province, South Africa were sampled over a ,rtwo-year period. A total of 264, irrigation water […]
Management of Navel Orangeworm (Lepidoptera: Pyralidae) Using Four Commercial Mating Disruption Systems in California Almonds.
The navel orangeworm, Amyelois transitella (Walker), is the most significant pest of California almonds. Direct feeding on the kernel by the larvae causes reductions in salable crop, crop quality, and exportability. Pheromone mating disruption (MD) targeting navel orangeworm is a relatively new technique with the potential to improve management. In 2017, we used replicated ~16-ha […]
Correlation between water stress and phenolic compounds of hydroSOStainable almonds.
Background: Water scarcity is currently affecting many areas of the world, reaching worrying levels in drought areas such as southern Spain. To cope with this issue, researchers in the agricultural sector have implemented deficit irrigation strategies intended to reduce water consumption by increasing fruit quality. Almond is among the most popular tree nuts worldwide and also […]
Impact of climate change on navel Orangeworm, a Major Pest of tree nuts in California.
California's agricultural sector is the highest valued agricultural sector in the United States. It is also a global leader in the production of various specialty crops, including three major tree nuts – almond, walnut, and pistachio. These three nut crops accounted for approximately 16% of the state's total agricultural economy. Current and future changes in […]
Spray Drift Mitigation Using Opposing Synchronized Air‐Blast Sprayers.
Background: Pesticide drift is a serious environmental and safety concern that affects all of U.S. agriculture. A number of mitigation techniques to reduce pesticide drift have been recommended by industry, academic and government agencies. These techniques are very costly or reduce the efficacy of the pest control product and have not been implemented by U.S. agriculture. […]
Chemical composition and oxidative stability of eleven pecan cultivars produced in Southern Brazil.
Nuts are considered highly nutritious foods and a source of health-promoting compounds. Therefore, the aim of this study was to evaluate the chemical composition (proximate composition, fatty acids, volatile compounds, total phenolics, squalene, and β-sitosterol) of eleven pecan cultivars harvested in Rio Grande do Sul State (Brazil) and investigate their oxidative stability by the Rancimat […]
Biologically Active Compounds in Selected Organic and Conventionally Produced Dried Fruits.
A growing demand for organic foods is driven by consumers' perception that they are more nutritious. However, while there is a number of scientific studies showing some superior qualities of organically grown fruit and vegetables, including, i.e., higher content of phenolics, some vitamins and antioxidant activity, scientific research looking into the quality of processed organic […]