scholarly journals Сontrol of potato diseases and pests using modern insecto-fungicidal products

2020 ◽  
pp. 45-57
Author(s):  
O. Borzykh ◽  
O. Shyta ◽  
V. Serhiienko ◽  
H. Tkalenko
Keyword(s):  
Colorado Potato Beetle ◽  
High Efficiency ◽  
Initial Period ◽  
Protective Action ◽  
Gravimetric Method ◽  
Growing Season ◽  
Potato Tubers ◽  
Fungicidal Action ◽  
Potato Beetle ◽  
Mass Development

Goal. To study the effect of insect-fungicidal dressing agents on the development of diseases and damage by pests to potato tops and tubers during the growing season and during harvesting. Determine the effectiveness of drugs. Methods. Investigated combined dressing agents containing preparations of insecticidal and fungicidal action. The setting of experience, observation, accounting of harmful objects and determination of the effectiveness of the drugs were carried out using generally accepted research methods. Tuber analysis was carried out by determining each fraction in relation to the total mass of potatoes in the selected samples. The yield was determined by the gravimetric method. Results. The use of insect-fungicidal dressing agents for the pre-planting treatment of potato tubers has shown their high efficiency. The effectiveness of the disinfectants against the Colorado potato beetle was 100% the entire period from the emergence of adults to the mass development of larvae. Against dry spot, which dominated in potato plantings, the treatment efficiency was at the initial period at the level of 43.6—53.2%, for the entire observation period — at the level of 26—36%, depending on the preparation. The drugs Emesto Quantum, 273.5 FS, TH and Celest Top 312.5 FS were characterized by a high level of protective action, because with. The use of insect-fungicidal dressing agents increased the yield of healthy standard products by an average of 30% due to a decrease in tubers affected by diseases and damaged by pests. The potato yield in the experimental variants was 2.4—2.8 times higher than in the control (without treatment).The highest yield was obtained in variants with the use of the preparation Celest Top 312.5 FS, because with. and a mixture of insecticidal and fungicidal disinfectants Cruiser 350 FS, because with. + Maxim 025 FS, because with. Conclusions. The use of combined insecticidal and fungicidal disinfectants for the treatment of potato tubers had high technical, economic and economic efficiency. Treatment of tubers 100% controlled the development of the Colorado potato beetle during its mass development and significantly limited the development of Alternaria during the growing season. Due to the limitation of the development of pests and diseases on the tops and tubers, the yield of potatoes in the variants with dressing of tubers was 2.4—2.8 times higher than in the control (without treatment).

scholarly journals PROTECTION OF POTATO CROPS AGAIST PESTS

2019 ◽  
pp. 99-107
Author(s):  
F. S. Melnichuk ◽  
S. A. Alekseeva ◽  
O. V. Hordiienko
Keyword(s):  
Rhizoctonia Solani ◽  
Colorado Potato Beetle ◽  
Common Scab ◽  
Protective Action ◽  
Potato Tubers ◽  
Dry Rot ◽  
Potato Plants ◽  
Air Temperatures ◽  
Potato Beetle ◽  
Potato Crops

The Colorado potato beetles and aphids are especially harmful pests for potato crops in the conditions of Kyiv region. So, on the 10th day after mass rebirth of the Colorado potato beetle larvae, potato plants on untreated by insecticide plots were completely destroyed by this phytophagus. Preplanting insecticide treatment of potato tubers provided high effectiveness against the Colorado potato beetle prior to the mass rebirth and development of larvae and reduced their density of population and harmfulness. The highest efficacy (93.2-95.2%) against these pests was noted in variants with Prestige, 290 FS, Emesto Quantum 273.5 FS and Celest Top 312.5 FS. Common scab, dry rot and Rhizoctonia solani were prevailed among the diseases of potato tubers. The greatest effectiveness against the common scab was provided by Prestige, 290 FS. Thus, the infestation of potato tubers by common scab in the variant with application of the Prestige, 290 FS was almost twice lower compared to control. Preparation Celest Top 312.5 FS provided a reduction of dry rot in almost 3 times, and Emesto Quantum 273.5 FS leads to reduction of infestation by Rhizoctonia solani in 4 times, respectively. The treatment of tubers is a reliable protection of potato plants against damage by the Colorado potato beetles and lesion diseases, that made it possible to obtain tuber yields at a level of 24.4-27.4 t per ha. However, preplanting treatment of planting material with insecticides is not always able to provide the protection of potato seedlings against damage by Colorado beetles. The mass reproduction of these pests occurs after planting of tubers and emerging of stalks at high air temperatures. Therefore, it is necessary to provide additionally spraying of plants. Typically, the insecticides used in recommended rates have a long period of protective action, which eliminates the need for further treatments on vegetative plants. The anti-resistant effect of this treatment is associated with the use of the neonicotinoids class insecticides (eg, imidacloprid, thiamethoxam, clothianidin), that have different mechanism of action compared to pyrethroids. Under such conditions, it is important to search, investigate and introduce modern, effective insecticides into agricultural production. For this purpose the research on the preparations from separate classes of chemical compounds with various toxic properties was conducted. The most effective against the larvae of Colorado potato beetles were insecticides Confidor, 20% SC, Calypso, 48% SC and Engeo 24.7% SC when spraying potato plantings. Duration of their protection was prolonged for two weeks after the application of insecticides. The maximum technical efficiency was reached as 99.5% (Confidor, 20% SC), 99.2% (Calypso, 48% SC) and 99.3% (Engeo 24.7% SC) on the third day after application. Other insecticides such as Mospilan, 20% SP and Actara, 24% WG (96.2-97.0%) provided somewhat lower the mortality rate of these phytophages. The highest and prolonged effect against aphids was obtained by spraying potato plantings with the preparations Engeo 24.7% SC and Confidor, 20% SC, the efficiency of which reached 98.2% and 93.1%, that decreased the number of aphids in almost 60 times, compared with the control. Spraying potato plantings with insecticides according to the recommended rates of application allows obtaining the yield of tubers at the level of 25,6-28,2 t per ha.    

scholarly journals The potato protection from major pests and diseases

2019 ◽  
pp. 18-21
Author(s):  
О. Shyta
Keyword(s):  
Late Blight ◽  
Total Mass ◽  
Common Scab ◽  
Chemical Compounds ◽  
Growing Season ◽  
Potato Tubers ◽  
Pests And Diseases ◽  
Potato Beetle ◽  
Fusarium Rot ◽  
Common Potato

Goal. To study the effectiveness of pesticides in protecting potato plantations from major pests and diseases. Methods. Comparative, analytical and field. Results. The data of technical and economic efficiency of pesticides against the main pests and diseases of potatoes are given. It was noted that the most effective against the complex of pests were drugs from the group of neocotinoids, and against diseases — fungicides of systemic and systemic contact action of various classes of chemical compounds. Conclusions. The most common potato diseases during the growing season of the crop were Alternaria and blight, the development of which in 2016—2017. amounted to 12.6—36.4% and 10.6—48.6%, respectively. Two spraying of potatoes with fungicides ensured technical effectiveness against Alternaria — 26.4—64.8%, against late blight — 24.3—53.9%. The main disease of potato tubers in 2017—2018 there was a common scab, the proportion of which in the control was 15.6%, and in the variants with the use of disinfectants — 5.4—8.6% of the total mass of the infected tubers. Dry Fusarium rot in the variants of the experiment was 2.5—2.8%, in the control — 9.3%. The number of bastards damaged by wireworms in the control was 7.2%, in the variants with the use of insecticidal and insecticidal and fungicidal disinfectants — 1.0—2.2%. It was established that the treatment of tubers with insecticidal and insecticide antifungal preparations against the Colorado potato beetle was effective for 40—50 days after planting potatoes, and further it is necessary to additionally spray it with insecticide.

scholarly journals Efficiency of insecticides against basic potato’s phytophages under sprinkling and drip irrigation

2020 ◽  
Vol 11 (3) ◽  
Author(s):  
F.S. Melnychuk ◽  
◽  
S.A. Alekseeva ◽  
O.V. Hordiienko ◽  
L.M. Melnychuk ◽  
...  
Keyword(s):  
Colorado Potato Beetle ◽  
Drip Irrigation ◽  
Insect Pests ◽  
Potato Tubers ◽  
Active Growth ◽  
Aerial Parts ◽  
Potato Beetle ◽  
Wide Range ◽  
Leptinotarsa Decemlineata Say ◽  
High Level

The article summarizes the results of determining the effectiveness of insecticides against the Colorado potato beetle (Leptinotarsa decemlineata Say) and aphids (Aphididae) with various methods of their application. Tests of a wide range of drugs with different active substances have provided high rates of stored yield in the system of potatoes’ protection. The investigated preptns showed a high level of protection against damage of plants by the Colorado potato beetle, when processing potato tubers. So, the effectiveness of the Prestige insecticides, 290 FS, Emesto Quantum 273,5 FS and Celest Top 312,5 FS, in the phase of active growth of the culture was 91,2-97,6%, and the duration of the protective effect was much longer than in Cruiser 350 FS, l.s.c, where the death rate was 86,1%. The predominant method of insecticidal treatments is the spraying of the aerial parts of plants during the growing season, as a rule, during the period of mass revival and development of Colorado potato beetle larvae. The greatest efficacy of insecticides on day 3 was noted on the options with the introduction of Confidor, 20% w.s.c., Calypso, 48% s.c. and Enzhio, 24,7% s.c., respectively 99,5%, 99,2% and 99,3%. The largest decrease in the number and population of potato plant aphids was noted with the use of the sample Enzhio, 24,7% s.c. at the recommended consumption rate – 98,2%. Along with this, other methods of insecticides’ applications are being developed and improved, in particular, the introduction of preps with drip irrigation. The effectiveness of the insecticides Enzhio, 24,7% s.c., Confidor, 20% w.s.c., was on par with Calypso, 48% s.c. The lowest protection observed in the areas of Actara’s, 24% c.p. application. In a field assessment of the insecticide’ use against aphids on a drip irrigation, it was noted that, with the usage of the Enzhio, 24,7% s.c., the efficiency was 99,4%. The use of other insecticides also contributed to a decrease in the population of potato plants by insect-pests and provided high protection at the level of 93,1-95,4%. Accordingly, the yield of potato tubers with the application of Enzhio, 24.7% s.c. was maximum and amounted to 29,7 t/ha.

New combined insecticide for potato protection

2021 ◽  
Author(s):  
O. V. Dolzhenko ◽  
◽  
O. A. Krivchenko
Keyword(s):  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
High Efficiency ◽  
Insect Species ◽  
Potato Beetle ◽  
Leptinotarsa Decemlineata Say ◽  
Harmful Insect

one of the most striking and well-known examples of harmful insect species that are currently classified as overdominant pests is the Colorado potato beetle: Leptinotarsa decemlineata Say. The high efficiency of the insecticide Beretta, MD (60 g/l + 40 g/l + 30 g/l) in the fight against this pest has been shown.

Results of comparative studies of insecticides in Potato cultivation technology

2020 ◽  
Author(s):  
E.V. Strelkova E.V. ◽  
Keyword(s):  
Species Composition ◽  
Colorado Potato Beetle ◽  
Technology Use ◽  
Growing Season ◽  
North East ◽  
The North ◽  
Potato Beetle ◽  
Cultivation Technology ◽  
Potato Pests ◽  
Chemical Groups

The article considers the issue of improving an element of potato cultivation technology - use of the VIRIY KS insecticide. What is the direct effect of insecticides of various chemical groups on the species composition and number of potato pests, as well as their dynamics during the growing season of the crop. The biological and economic effectiveness of the VIRIUM KS insecticide on potatoes against the potato Colorado potato beetle in the North-East of Belarus is evaluated.

scholarly journals Potato Pests In Uzbekistan

2021 ◽  
Vol 03 (07) ◽  
pp. 11-20
Author(s):  
Dilshod Obidzhanov ◽  
◽  
Kholbek Erkinov ◽  
Keyword(s):  
Colorado Potato Beetle ◽  
Seasonal Dynamics ◽  
Potato Tubers ◽  
Climatic Zones ◽  
Biological Features ◽  
Potato Beetle ◽  
The Republic ◽  
Protective Methods ◽  
Potato Pests

More than 10 kinds of the basic pests have been revealed in the territory of various soil-climatic zones of the Republic. Among them are adventive kinds –the Colorado potato beetle, the whitefly and the potato moth. Biological features of kinds and seasonal dynamics of their development are established; the general tactic of protective methods with application of progressive means and receptions is developed. Precautionary receptions of potato tubers’ protection against potato moth are established and recommended.

scholarly journals EFFECTIVENESS OF PLANT PROTECTION PRODUCTS AGAINST PESTS ON POTATOES IN PRIMORSKY TERRITORY

2018 ◽  
Vol 48 (4) ◽  
pp. 14-19
Author(s):  
T. K. Коvalenko
Keyword(s):  
Protective Effect ◽  
Colorado Potato Beetle ◽  
Plant Protection ◽  
Far East ◽  
Field Tests ◽  
Growing Season ◽  
Plant Protection Products ◽  
Biological Efficiency ◽  
Need For Treatment ◽  
Potato Beetle

The work presents the results of comparative field tests on effectiveness of insecticides and bioinsecticides and their tank mixtures for potatoes against the potato ladybird and the Colorado beetle in the South of the Far East. Effectiveness of preplanting and vegetation treatment of potatoes with preparations was observed. The study, conducted in 2012–2014 on the plants of the recognized Yantar potatoes variety, showed high biological efficiency of preparations from the neonicotinoid class of Prestige and Cruiser in the rates of 1.0 l/t and 0.2 l/t by pre-planting treatment of potato tubers. The Prestige and Cruiser provided long-term protective effect against the Colorado potato beetle and the potato ladybird, which eliminated the need for treatment in the growing season of the crop. The use of these insecticides caused productivity increase of potatoes by 7.5 and 8.4 t/ha. For vegetation treatment the preparation Decis Extra showed the highest and the most long-lasting effect. On the 28th day after the treatment, its effectiveness accounted for 84.4–90.3%. Protective effect of bio-insecticide Phytoverm lasted for 14 days. Double treatment of potatoes with this bio-insecticide restrained the number of pests below the threshold number until the end of the growing season. During the research it was found that the joint use of Phytoverm with 3 times lower rates of the insecticides Decis Extra and Konfidor provided a significant reduction in the number of the potato ladybird and the Colorado potato beetle and the preservation of 39.3-41.6% of potato productivity.

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