<abstract xmlns="http://www.w3.org/1999/xhtml">

The potato tuber moth (PTM; caused by <italic>Phthorimaea operculella)</italic> is one of the most serious insect pests that causes damage to crop production and storage of potatoes. It causes damage to the potato, while larvae of <italic>P. operculella</italic> feed on and grow in the leaves and tubers of potatoes, resulting in direct product losses. The larvae construct tunnels through tubers and mine leaves, stems, and petioles, resulting in uneven galleries. Foliar damage to the potato crop does not normally result in major output losses, although contaminated tubers may have lower marketability and storage losses of up to 100%. Light watering every 4 days and mulching with neem leaves during the last 4 weeks before the harvest was found to be a successful treatment. Spraying a thin layer of testing natural oils also acts as a defensive layer, which causes confusion or disturbance to the searching neonate larvae. The pest is tough to eradicate, so producers rely heavily on insecticides and biological approaches. Potato tuberworm damage was reduced by rotating esfenvalerate and indoxacarb treatments before and after vine kill. At 5 g/kg potato tuber in farmer rustic storage, <italic>Acorus calamus</italic> dust exhibited great efficiency in preventing PTM tuber damage. In different regions of the world, parasitoids such as <italic>Copidosoma</italic> spp. and <italic>Apanteles</italic> spp. are significant in PTM management. Pheromone traps are used for pest population monitoring as well as pest management in the field and during storage.
</abstract>

Sam Higginbottom University of Agriculture

A review on the biology and management of potato tuber moth

<abstract xmlns="http://www.w3.org/1999/xhtml">

<italic>Ambrosia artemisiifolia</italic> L. (Asteraceae) has become a major threat to agriculture in many parts of the world. Global agriculture relies on the use of herbicides against <italic>A. artemisiifolia</italic> in the crops most at risk – sunflower, maize and soybean. This paper aims to provide an overview of the chemical control of <italic>A. artemisiifolia</italic> and to summarize the latest knowledge in this field. The sunflower is the crop most threatened by <italic>A. artemisiifolia</italic>, as both plants belong to the same family. The best control level was achieved after the preemergence application of flurochloridone and the combination of dimethenamid-P + pendimethalin. The introduction of the non-GM Clearfield and ExpressSun technologies allowed effective control with postemergence herbicides in sunflower varieties tolerant to imidazolinone and tribenuron-methyl herbicides. In soybean, the highest efficacy was observed in trials with imazamox and bentazone alone and in combination. The combination of imazamox with bentazone had a positive effect on yield compared to untreated stands. The introduction of transgenic soybeans tolerant to glyphosate led to increased glyphosate use and the predictable emergence of weed resistance in America in 1996. Preplant followed by postemergence herbicides were critical for the effective control of glyphosate-resistant <italic>A. artemisiifolia</italic> in glufosinate tolerant soybean. In maize, the highest efficacy was obtained after the application of glufosinate, bromoxynil and mesotrione + atrazine. Of the above substances for the control of <italic>A. artemisiifolia</italic> in maize, only mesotrione is currently registered in the EU.
</abstract>

Herbicide control of <italic>Ambrosia artemisiifolia</italic> in sunflower, soybean and maize

<abstract xmlns="http://www.w3.org/1999/xhtml">

Plant viruses are a threat to a sustainable economy because they cause economic losses in yields. The epidemiology of plant viruses is of particular interest because of their dynamic spread by insect vectors and their transmission by seeds. The speed and direction of viral evolution are determined by the selective environment in which they are found. Knowledge of the ecology of plant viruses is critical to the transmission of many plant viruses. Accurate and timely detection of plant viruses is an essential part of their control. Rapid climate change and the globalization of trade through free trade agreements encourage the transmission of vectors and viruses from country to country. Another factor affecting the emergence of viruses is the cultivation of monocultures with low genetic diversity a nd high plant density. Trade in plant material (germplasm and living plants) also cause the emergence of new viruses. Viruses have a fast adaptation and development in a new environment. Aphids are the most widespread and important vectors of plant viruses. <italic>Myzus persicae</italic> transmits more than 100 different plant viruses. In nature plant viruses are transmitted also by nematodes, fungi, mites, leafhoppers, whiteflies, beetles, and planthoppers. The symptoms of viral diseases are very diverse and are often confused with symptoms of abiotic stress. Control of viral diseases is based on two strategies: i) immunization (genetic resistance acquired by plant transformation, breeding, or cross-protection), ii) prophylaxis to limit viruses (removal of infected plants and control of their vectors). For management, we rely on quick and accurate identification of the disease.
</abstract>

The transmission of plant viruses

<abstract xmlns="http://www.w3.org/1999/xhtml">

Sorghum has good adaptability to drought stress conditions, but its early vegetative phase and the generative phase are susceptible to stress. Understanding the physiological response of plants under drought and mechanisms regulating drought tolerance in a plant, mediated by arbuscular mycorrhizal fungi (AMF) will be useful in developing a strategy to deal with drought. Here, a pot experiment was used to explore the growth performance, biomass production and physiological responses of two sorghum accessions (4183A and JP-1) inoculated by the AMF under drought stress, as well as the effect of AMF on soil enzyme and microbial stability. Based on growth observations, the AMF inoculation treatment had not significant effect on increasing the drought resistance of the two sorghum accessions. Drought stress decreased the rate of height increment for 4183A, and JP-1 accessions by 37% and 55%, respectively, compared to normal conditions. Shoot dry weight and root dry weight losses were up to 59% and 66%, respectively, compared to well-watered conditions. However, the interaction of AMF and plants to deal with drought can be captured through physiological response, particularly proline accumulation. AMF inoculation in JP-1 accession reduced proline accumulation (99.91 mM/leaf fresh weight) compared to non-AMF inoculated plants (149.86 mM/leaf fresh weight). It can be implied that mycorrhiza can reduce plant stress. In contrast to accession 4183A, there was an increase in the accumulation of proline in plants inoculated with mycorrhiza under drought conditions. Additionally, AMF inoculation improved acid phosphatase activity in the soil and proved crucial for maintaining the stability of the rhizosphere microorganisms under drought-stressed conditions.
</abstract>

Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress

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Agriculture (Pol'nohospodárstvo)

 Why subscribe, read and submit The Agriculture (Poľnohospodárstvo) is a peer-reviewed international journal with open access that publishes mainly original research papers. The types of contributions are also published – review and short communication. Papers are published in British English. The journal has been continuously publishing since 1954. It is published four times a year by the National Agricultural and Food Centre - Research Institute of Plant Production Piešťany, Slovak Republic (www.agriculture.sk; www.nppc.sk; www.vurv.sk). It is indexed in 36 recognized international scientific databases (e.g. SCOPUS).  Our journal is an excellent source of research information on agricultural and biological sciences. It offers fast review, editing process, worldwide dissemination and accessibility of articles. It examines various aspects of research and is devoted to the publication of papers dealing with the aims and scopes related to:   cropland,  farming and cropping systems,  precision agriculture,  agroecosystems,  plant improvement (genetic resources and biodiversity, physiology, genetics, breeding, biotechnology),  permanent crops (growing management and technologies, nutrition, disease and pest protection, weed control, economy of production),  chemistry,  biology, and genetics applied to agronomy,  quality of plant production,  interactions with environment,  grasslands and pasture improvement,  organic farming,  soil quality and management for sustainable agriculture,  irrigation and water use, and other aspects of plant science and production.   Rejection Rate   70%   Back issues Link to previous on-line volumes of Agriculture (Poľnohospodárstvo) (full text from 2006): www.agriculture.sk  Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Agriculture (Pol'nohospodárstvo)

Volume 68 (2022): Issue 3 (October 2022)

A review on the biology and management of potato tuber moth

Herbicide control of Ambrosia artemisiifolia in sunflower, soybean and maize

The transmission of plant viruses

Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress

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