scholarly journals Biopesticides the sustainable way of organic and healthy tomato production

Gradus ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 26-31
Author(s):  
Endre Pölös ◽  
Csaba Szabó ◽  
András Palkovics ◽  
Fernanda Delgado

In our experiment, we used allelochemicals in vegetable production that can be incorporated in part or in whole into integrated pest management or in organic production. The plant extracts we used can be applied to the crop in the same way as conventional pesticides. Correlations can be found between the allelochemicals that we used in plant protection, the positive change in the average yield, the reduction of harmful organisms and the health status of the cultivated plants. Bioherbicide has been shown to be an effective weed control containing allelochemicals that inhibit photosynthesis.Extracts of extremely hot chili pepper (Capsicum annuum ssp.) varieties, aqueous solutions of essential oils of herbs and spices were used for plant protection in tomato plantations under open field conditions. The results show that chili pepper extract is a strong repellent, and lavender (Lavandula angustifolia) essential oil solution has a repellent, fungicidal and bactericidal effect at the same time.

2010 ◽  
Vol 55 (1) ◽  
pp. 103-122 ◽  
Author(s):  
Branislava Sivcev ◽  
Ivan Sivcev ◽  
Zorica Rankovic-Vasic

Pests and grapevine diseases in organic production are suppressed by preventive measures with a view to reducing the impact of the attack. Allowed substances acting on patogenous fungi, insects, mites and other harmful organisms are used, if appropriate. Insecticides of plant origin are used in the organic production of grapevine, as well as vegetable oils, powders and insecticidal soaps that are selective, with a narrow range of effects and of lower toxicity, as well as biological products. As a rule, such plant protection products require a more frequent application. Copper-based and sulphur-based fungicides are still leading products in suppressing grapevine diseases. Researches are directed to decrease the quantity of application and to find their replacement by also efficient fungicides. A special emphasis is put on researching the efficient fungicides for suppressing Botrytis bunch rot and factors causing grapevine wood diseases (Esca and Eutypa) in organic production. Along with copper and sulphur, different substances such as bicarbonates, plant extracts and oils, biological products being parasites, patogenous or diseases agent antagonists, and natural products such as milk and whey are applied in the organic production of grapevine.


2020 ◽  
Vol 6 (2) ◽  
pp. 158-165
Author(s):  
V. Babaev

Over the past 50–60 years, the proportion of vegetable crops in the diet of people has increased, and an increase in demand has led to an increase in production. Thus, China accounts for 31% of the 170 million tons of tomatoes produced in the world, 11.2% in India, 8.8% in the USA and 6.9% in Turkey. In Azerbaijan, this figure is 465 thousand tons. The widespread use and use of fertilizers and other pesticides in vegetable production poses a serious threat to human health and the environment. Research shows that the quality indicators of vegetable products often do not meet international standards and medical norms . One of the main reasons for this is the excess of nitrates in the product. Overusing of nitrogen fertilizers, as well as pollution of ground and surface water sources, atmospheric nitrogen compounds, also accumulates large amounts of nitrate in fruit and vegetable and feed crops (and therefore dairy products). Nitrate (NO3) is one of the most common compounds in nitrogen in nature. They are always present in the soil and play an important role in plant nutrition. Part of the nitrogen and other fertilizers supplied to the soil is washed with rain and irrigation water and accumulated in ponds and water sources, mixed with river salts and poured into the sea. On average, 200,000 people die each year from the effects of these poisons on the human body. Thus, the growth of fatal diseases and environmental pollution has led to an increase in the number of countries that are currently engaged in environmentally friendly (organic) production (181 countries). The natural conditions of Azerbaijan provide great opportunities for expanding the production of vegetables in the country. However, given the viability and historical importance of the transition to organic vegetable growing in the country, the solution to this problem depends on the state approach.


2018 ◽  
Vol 111 (2) ◽  
pp. 501 ◽  
Author(s):  
Žiga LAZNIK ◽  
Tanja BOHINC ◽  
Stanislav TRDAN

With a rapid growth invasive alien plants cause a lot of problems not only to indigenous varieties of plants, but also for people, as they are often the cause of many health problems, such as allergies, and they also contribute to greater economic loss. Plant protection is an activity which, on the basis of appropriate scientific knowledge by means of various methods and an economical manner, protects cultivated plants from harmful organisms. In Slovenia, as well as worldwide, the use of pesticides in plant protection programmes is the most widespread method due to price and other benefits. Researchers are looking for new, environmentally more acceptable ways of protecting plants against harmful organisms due to adverse environmental effects of pesticides, their non-target activity, the occurence of resistance to pesticides, and increasingly stringent environmental policies. One such measure is also the study of plant extracts in the suppresing of economically important harmful organisms. In a review article, we focused on the literature review of the usefeulness of plant extracts of several invasive alien plant species in plant protection: knotweeds (<em>Fallopia japonica </em>[Houtt.] Ronse Decr)<em>, F. x bohemica </em>(Chrtek &amp; Chrtková) Bailey), goldenrods (<em>Solidago canadensis </em>L., <em>S. gigantea </em>Aiton), stag's-horn sumac (<em>Rhus typhina </em>L.), tree of heaven (<em>Ailanthus altissima </em>[Mill.] Swingle)<em>,</em> false indigo (<em>Amorpha fruticosa </em>L.) and stinkwort<em> </em>(<em>Dittrichia graveolens </em>[L.] Greuter), which we are studying within the project ApPLAuSE.


2020 ◽  
Vol 4 (5) ◽  
pp. 449-452
Author(s):  
Alan MacLeod ◽  
Nicola Spence

COVID 19 has raised the profile of biosecurity. However, biosecurity is not only about protecting human life. This issue brings together mini-reviews examining recent developments and thinking around some of the tools, behaviours and concepts around biosecurity. They illustrate the multi-disciplinary nature of the subject, demonstrating the interface between research and policy. Biosecurity practices aim to prevent the spread of harmful organisms; recognising that 2020 is the International Year of Plant Health, several focus on plant biosecurity although invasive species and animal health concerns are also captured. The reviews show progress in developing early warning systems and that plant protection organisations are increasingly using tools that compare multiple pest threats to prioritise responses. The bespoke modelling of threats can inform risk management responses and synergies between meteorology and biosecurity provide opportunities for increased collaboration. There is scope to develop more generic models, increasing their accessibility to policy makers. Recent research can improve pest surveillance programs accounting for real-world constraints. Social science examining individual farmer behaviours has informed biosecurity policy; taking a broader socio-cultural approach to better understand farming networks has the potential to change behaviours in a new way. When encouraging public recreationists to adopt positive biosecurity behaviours communications must align with their values. Bringing together the human, animal, plant and environmental health sectors to address biosecurity risks in a common and systematic manner within the One Biosecurity concept can be achieved through multi-disciplinary working involving the life, physical and social sciences with the support of legislative bodies and the public.


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 531b-531
Author(s):  
J. Nienhuis

REDCAHOR is the Spanish acronym for “Central American Vegetable Network.” Vegetables have traditionally been an important source of nutrients and vitamins in the diet in Central America. Vegetable production in this region is now changing as local consumers are demanding increased diversity and quality and international markets are expanding with “non-traditional” vegetable exports. The present restraints to expanded research and production of vegetables in the region include i) need for cultivars with increased insect and disease resistance, ii) poor and excessive use of pesticides, and iii) inadequate postharvest technology. In addition, there are few vegetable researchers in the region and response to their activities have not been coordinated. The goal of REDCAHOR is to develop a regional network of national institutions that can prioritize agendas and cooperate to maximize the impact of available resources. Establishment of a system of regional trials and cooperative regional programs in integrated pest management and plant breeding are currently under development. A series of regional workshops are planned, including integrated pest management, maintenance and use of genetic resources, organic production, and greenhouse production. In addition, REDCAHOR, in collaboration with the Escuela Agricola Panamerica in Honduras, will offer regional short-course training in vegetable breeding and genetics as well as vegetable production and management, including integrated pest management.


Solids ◽  
2021 ◽  
Vol 2 (1) ◽  
pp. 60-75
Author(s):  
Salavat S. Khalikov

Because of the rapid development of nanotechnologies, materials, in particular, solid dispersions (SDs), which are actively introduced into the life of modern man, have been obtained. Special progress in this area is observed in industry and medicine. The use of SDs in agriculture is lagging far behind, despite the growing number of scientific papers on this topic. At the same time, the prospects for the introduction of SDs in the agro-industrial complex are obvious. The review presents the results of research on the development of innovative preparations based on SD to protect plants from diseases and pests of cultivated plants, as well as parasiticides to protect animal health based on modern achievements of nanotechnology. One of these technologies is the methods of mechanochemistry, which improve the properties of poorly soluble biologically active substances by their joint mechanical treatment with water-soluble polymers and auxiliary substances.


Plant Disease ◽  
2002 ◽  
Vol 86 (2) ◽  
pp. 156-161 ◽  
Author(s):  
P. A. Abbasi ◽  
J. Al-Dahmani ◽  
F. Sahin ◽  
H. A. J. Hoitink ◽  
S. A. Miller

Field trials were conducted over 2 years to assess the effects of compost amendments on disease development in organic and conventional processing tomato (Lycopersicon esculentum L.) production systems. The incidence of anthracnose fruit rot was reduced in organic tomato plots amended with a high rate of composted cannery wastes compared with the incidence in nonamended control plots in 1998 when disease incidence was high. Marketable yield was increased by 33% in compost-amended organic plots. Plots amended with a high compost rate had more ripe fruit than the nonamended control. The incidence of anthracnose and of total disease on fruit was less on the cultivar OH 8245 than on Peto 696. Total fruit yield of OH 8245 but not Peto 696 in organic plots was increased by amendment with composted cannery wastes. In conventional tomato production, composted yard wastes increased disease severity on foliage both years but reduced bacterial spot incidence on fruit in 1997, when disease pressure was high. The incidence of anthracnose was not affected by composted yard wastes. Marketable and total fruit yields of Peto 696 were not increased in compost-amended conventional plots. The plant activator Actigard reduced foliar disease severity and the incidence of bacterial spot and anthracnose on fruit, while increasing yield of marketable fruit.


2020 ◽  
Vol 10 (4) ◽  
pp. 580-593
Author(s):  
M A. Bryzgalina ◽  

The demand for organic food is a prerequisite for the formation and development of organic agriculture, and the task of promoting it on domestic and foreign markets is among the priority ones. A serious problem in the sale of this category of goods to the domestic food markets of the country is the distrust of potential consumers. It is possible to solve this problem through certification and the use of a well-known brand. Certification of manufacturers of environmentally friendly products is a rather complicated and expensive procedure, therefore it is not available for most agricultural producers in the Saratov region. However, basing on the fact that today the task of developing the organic agriculture industry is set at the level of the government of the country, it is possible to solve this problem with the support of the state. The article examines the enterprises of the Saratov region of various legal forms, which do not use fertilizers and chemical means of crop protection in the production of crop production. Using the example of agricultural organizations and farms in the region, a mechanism for subsidizing certification of the most promising producers of organic wheat (winter and spring) is proposed, which includes the allocation of targeted subsidies for its implementation. As a criterion for the selection of applicants for this type of state support, as well as the distribution of budgetary resources between them, it is proposed to use the average indicator (potential) of the annual volume of organic production in the work. As a result, direct participants in certification subsidies were selected from the compiled sample of the studied enterprises that do not use chemical plant protection products and mineral fertilizers and the total annual volume of their marketable wheat was determined. The author determined the maximum cost of quality confirmation procedures for one enterprise, taking into account the increasing coefficients per one day of inspection, and also established the largest amount of budgetary resources that may be spent on the implementation of the proposed measure. In order to evaluate the effectiveness of the proposed certification subsidy mechanism, the author developed formulas for determining the selling price of products in the promising organic segment, taking into account its increase by the level of premium premiums.


2016 ◽  
Vol 5 (4) ◽  
pp. 46 ◽  
Author(s):  
Mona Ahmadiani ◽  
Chun Li ◽  
Yaqin Liu ◽  
Esendugue Greg Fonsah ◽  
Christine Bliss ◽  
...  

<p class="sar-body"><span lang="EN-US">There are little economic data concerning the profitability of organic vegetable crops in the Southern Coastal Plain, especially in reference to sod-based rotation and tillage alternatives.  A three-year experiment was conducted at the North Florida Research and Education Center-Quincy involving a crop rotation sequence of oats and rye (winter), bush beans (spring), soybean (summer) and broccoli (fall). Bush beans and broccoli were the cash crops. This paper presents analyses of the riskiness of organic production utilizing years in bahiagrass prior to initiating the crop rotation sequence and conventional tillage (CT) versus strip tillage (ST). Methods of “Risk-rated enterprise budget” and “Analyses of Variance-Covariance Matrix (ANOVA)” were utilized for determining relative profitability, and coefficient of variation was applied for measuring riskiness of each treatment. Three years of bahiagrass prior to initiating the crop rotation sequence, in combination with conventional tillage, had the highest profitability and ranked as the least risky scenario.  The second most profitable treatment was conventional tillage with four years of bahiagrass. Focusing on strip tillage, four years of bahiagrass with strip-tillage ranked third in term of profitability.</span></p>


2006 ◽  
Vol 86 (Special Issue) ◽  
pp. 1395-1400 ◽  
Author(s):  
X. Hao ◽  
Q. Wang ◽  
S. Khosla

While CO2 enrichment generally benefits tomato fruit production in winter its effects on summer tomato production (under high air temperature and strong ventilation) are still not clear, especially when the crop has been subjected to long-term CO2 enrichment in winter. Therefore, a study was initiated in 2005 to determine the feasibility of summer CO2 enrichment in southwestern Ontario, a major greenhouse vegetable production area in North America with very hot summers. The long tomato crop (cv. Rapsodie) was planted into rockwool slabs in six greenhouse compartments in January. From January to the middle of June, the tomato plants in all six greenhouse compartments were subjected to the same standard CO2 enrichment practice. From the end of June to August, three CO2 treatments (two compartments for each treatment) were applied: Control (ambient/no enrichment), Enrich1 (800 µL L-1 when ventilation was less than 10% and 400 µL L-1 when less than 50%) and Enrich2 (1200 µL L-1 when ventilation was less than 10% and 500 µL L-1 when less than 50%). In all treatments, CO2 enrichment ceased when ventilation requirement was more than 50%. Leaf photosynthesis, as indicated by the CO2 response curve, partially acclimated to the CO2 enrichment. Marketable fruit yield was reduced by the summer CO2 enrichment. Leaf deformation [short, thick, curled and somewhat crisp, dark grey-green leaves, so-called short leaf syndrome (SLS)] was observed in the greenhouse compartments with summer CO2 enrichment. SLS developed under high light intensity and high CO2 concentration might have limited response of the tomato crop to summer CO2 enrichment. Further investigation on the cause and mechanism of SLS is needed to improve the response of greenhouse tomatoes to summer CO2 enrichment. Key words: Photosynthesis, Lycopersicon esculentum, high temperature stress, acclimation


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