scholarly journals Anti-resistant plant protection system against harmful arthropods

Author(s):  
О. Vlasova ◽  
M. Sekun ◽  
M. Zatserklyana

Goal. To substantiate and develop an anti-resistant system of protection of crops and perennials from harmful arthropods. Methods. The sensitivity of phytophages on natural populations collected on winter wheat, soybean, and rapeseed crops was determined by various methods of their poisoning: immersion of insects on inhabited plants, immersion of insects in gauze bags for 3 seconds. in a suitable solution of insecticide. The methods are based on the study of the pest’s response to a series of doses of the drug — from the minimum, causing mortality of 5—10% of normal-sensitive individuals, to the maximum (mortality of 90% or more). Toxicological parameters were calculated using the PROBAN program. Results. Different sensitivity of natural populations of arthropods to modern insecticides is revealed. Techniques for the rational use of insecticides populations and the use of alternative biological and immunological methods. Conclusions. An effective measure to prevent and inhibit the formation of resistant populations of harmful arthropod species to insecticides is an anti-resistant plant protection system. It includes monitoring the resistance of natural populations of harmful phytophagous species, identifying the type of resistance and the rational use of chemicals.

2022 ◽  
Vol 42 ◽  
pp. 01020
Author(s):  
Gennady Urban ◽  
Olga Krotova ◽  
Denis Efimov ◽  
Konstantin Savenkov ◽  
Maria Savenkova

The authors analyzed the biological effectiveness of the integrated plant protection system formed when the microbiological fungicide BisolbiSan, Zh was included in the classical protection scheme adopted in the farms of the Rostov region. The biological effectiveness of the integrated protection system, including the fungicide BisolbiSan, was analyzed, the impact of the studied protection system on the yield, the quality of the grain obtained, the phytosanitary condition of the crop during the growing season on winter wheat crops of the variety Nakhodka with the use of a plant protection system, including the fungicide BisolbiSan, Zh. The fungicide BisolbiSan, containing a culture of rhizospheric bacteria Bacillus subtilis strain H-13, suppresses the germination of spores and mycelium growth of phytopathogenic fungi due to the multilateral action of bacterial metabolites, without causing the formation of resistance in pathogens. It was found that the protection system used practically does not cause a decrease in grain quality — in terms of the average protein and gluten content, the grain at the experimental site even slightly exceeds the grain obtained from the control site by 16.88% and 27.8%. With the cost of winter wheat grain of 1100 rubles/kg, an increase in the yield in the experiment of 3.8 kg/ha in relation to control and the cost of an experimental protection system in the amount of 3,357 rubles/ha, revenue amounted to 823 rubles/ha.


Author(s):  
O.N. Negreba ◽  
◽  
E.V. Bondarenko ◽  
M.A. Belik ◽  
T.A. Yurina ◽  
...  

The article presents the results of research on modern technologies for weed control in production crops of corn for grain. The best results were obtained in the basic version of technology No. 5 with the following plant protection system: mechanical treatment of crops (cross-row harrowing and three row-to-row cultivation) in combination with chemical treatment with the herbicide Mаister-150 g/ha.


Author(s):  
Mariya Fesenko ◽  
Aleksandr Shpanev

The purpose of the research was to study the effect of mineral fertilizers and plant protection system on the vegetation index NDVI and its seasonal dynamics in agrocenoses of spring barley with overseeding of perennial grasses in the North-West of Russia. The data obtained indicate that against the background of the deficiency of the main elements of mineral nutrition in the second half of the growing season of spring barley, a significant phytomass of perennial grasses is formed in the crop, which account for 36.7%. This leads to a smaller decrease in the NDVI index (by 0.06) than in the fertilized variants (0.20). The value of NDVI index reflects not only the state of cultivated plants and weed infestation of crops, but also the level of development of crops, growing under vegetation. The influence of mineral nutrition developed during the period of maximum values of the index, which were recorded 6-8 weeks from the sowing date and 26-30 weeks from the beginning of the year. Under the influence of average doses of fertilizers, the NDVI index increased by 0.09...0.2 (on average 0.13), under the influence of high doses – by 0.13...0.26 (on average 0.18). The influence of plant protection system was expressed by a decrease in the phytomass of weeds (by 49.4...68.9%), at the same time the mass of spring barley and perennial grasses increased (by 1.7...18.5% and by 11.7...43.5% respectively). Carrying out the whole complex of protective measures led to a decrease in the NDVI index values by 0.01...0.06, depending on the phytosanitary situation in the agrocenosis. The most reliable forecast of the yield of spring barley can be implemented in the period from 5 to 7 weeks from the beginning of the emergence of barley shoots, especially against the background of the use of plant protection products that eliminate the influence of harmful organisms on the formation of the crop and the optical properties of crops


1991 ◽  
Author(s):  
William F. Carlson ◽  
Kenneth L. Bennett ◽  
Gerald V. Delisle ◽  
Kenneth L. Hampsten ◽  
Barbara L. Philipp ◽  
...  

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