scholarly journals Efficacy of Biopesticides against White Grub Leucopholis lepidophora (Blanchard) Infesting Sugarcane

Author(s):  
S. B. Birajdar P. B. Mohite ◽  
U. B. Hole M. D. Thamidela ◽  
O. A. Kavitake S. S. Kadavkar ◽  
S. R. Mande P. S. Jadhav
Keyword(s):  
2021 ◽  
Vol 10 (3) ◽  
pp. 206-210
Author(s):  
Bhut JB ◽  
◽  
Jethva DM ◽  
Naggana R ◽  
◽  
...  

Field experiment on evaluation of insecticidal seed treatments against white grub Holotrichia consanguinea Blachard infesting groundnut was conducted during kharif 2018 and 2019 at farmers field. The nine insecticides evaluated as seed treatment against white grub infesting groundnut, the lowest per cent plant morality and number of grub/m2 was observed in treatment of clothianidin 50 WDG @ 2 g a.i. /kg and imidacloprid 40 + fipronil 40 WG @ 3 g a.i. /kg. These treatments were produced 2329 and 2296 yield of pod, 3970 & 3780 kg/ha yield of halum, respectively. Increased in yield over control in these treatments was recorded 57.79 and 55.56 per cent in pod, 76.29 and 64.65 per cent in halum. Whereas avoidable yield loss recorded of these treatments was recorded 36.63 and 35.71 per cent in pod, 43.27 and 39.27 per cent in halum. However, the highest 1:28.32 NICRB was recorded in treatment of chlorpyriphos 20 EC @ 30 ml a.i. /kg. The NICRB of clothianidin 50 WDG @ 2 g a.i. /kg and imidacloprid 40 + fipronil 40 WG @ 3 g a.i. /kg were recorded 1:14.95 and 1:9.20, respectively. The evaluated insecticides had no adverse effect on seed germination


2018 ◽  
Vol 11 (3) ◽  
pp. 179-182
Author(s):  
Deven J. Patel ◽  
Nirav Bhatt

Research in agriculture is increasing quality and quantity, but pest reduces it. To prevent the effect of these pests, insecticides are used. But excessive use of pesticides is very harmful to production and environment. So initially pest detection is necessary. We work on nocturnal pests because that can be easily attracting using night trapping tools. The purpose of this review article is to analyse the popular techniques and find the right technique for the initial diagnosis and early detection of major nocturnal flying pests like Pink Bollworm, White Grub, Helicoverpa and Spodoptera. The importance of early detection can be in identifying and classifying the pests in a digital view. We have concluded our results with the various methods and the prospects of future research.


Author(s):  
O.V. Esenkulova ◽  
О.V. Korobeinikova ◽  
M.P. Maslova

В рамках развития органического сельского хозяйства актуально выявление сортов с высокой устойчивостью к вредным организмам. В условиях Удмуртской Республики на дерново-среднеподзолистой среднесуглинистой слабосмытой почве в 2017-2018 годах проводились исследования, целью которых была оценка новых и перспективных сортов картофеля различных по срокам созревания. Одной из задач было выявление повреждений клубней вредителями. Изучали сорта картофеля разных сроков созревания: раннеспелые Нандина, Ред Соня, Колетте, Беллароза, Винета, Джоконда, Раноми среднеспелые Джелли, Вираж, Гала, Рябинушка, Каптива, Алуэт позднеспелые Ред Фентази, Церата КВС, Танго. Полевой однофакторный опыт закладывался согласно методике полевого опыта. Клубневой анализ проводили в соответствии с ГОСТ 33996-2016 Картофель семенной. Технические условия и методы определения качества. Коэффициент адаптивности изучаемых сортов картофеля рассчитан по методу Л.А. Животкова. За два года исследований более урожайными были раннеспелые сорта: Нандина, Ред Соня, Беллароза, Раноми среднеспелые: Джелли, Каптива, Алуэт позднеспелые: Ред Фентази и Церата КВС. Повреждение клубней картофеля личинками щелкуна (проволочником) было очень высоким и составило в 2017 году в среднем по сортам 47, в 2018 году 61. В оба года исследований клубни были повреждены личинками озимой совки (в среднем 3-4 ), личинками майского хруща (1-2 ). В 2018 году наблюдалось повреждение полевками (в среднем по сортам 3 ). Раннеспелые сорта являются более адаптивными к условиям Удмуртской Республики (коэффициент адаптивности 1,22 и 1,31). Однако качество посадочного материала не соответствует ГОСТ по проценту повреждений вредителями. Поэтому необходима тщательная сортировка и доведение клубней до регламентируемых показателей. Для снижения поврежденности в полевых условиях картофель требуется размещать после бобовых и крестоцветных культур, проводить известкование почв и вносить перепревшие органические удобрения.As part of the development of organic agriculture, the identification of varieties with high resistance to pests is relevant. In the conditions of the Udmurt Republic, studies were carried out in 2017-2018 on the derno-medium-soil average carbon-free weak soil, the purpose of which was to assess new and permissive potato cultivars of different maturation times. One challenge was to identify damage to tubers by insect pests and the possibility of using them as planting material. Potato cultivars of different maturation dates were studied: early Nandina, Red Sonya, Kolette, Bellaroza, Vineta, Dzhokonda, Ranomi medium Dzhelli, Virazh, Gala, Ryabinushka, Kaptiva, Aluet late Red Fentazi, Tserata KVS, Tango. Field one-factor experiment was laid according to the method of experimental work. Tuberous analysis was carried out in accordance with GOST 33996-2016 Seed Potatoes. Technical conditions and methods of quality determination . The coefficient of adaptivity of the studied potato cultivars is calculated according to the method of L.A. Zhemkov. More crop-producing were early cultivars: Nandina, Red Sonya, Bellaroza, Ranomi average: Dzhelli, Kaptiva, Aluet late: Red Fentazi and Tserata CF. During the years of research, there was damage to potato tubers by wireworm in 2017 on average 47, and in 2018 61. The only cultivar, Ranomi, was not damaged by the wireworm in 2017. A small number of tubers was damaged by larvae of turnip moth (Agrotis segetum) (3-4) and larvae of white grub (1-2). During two years of research in the Udmurt Republic early cultivars were more adaptive, the coefficient of adaptability was 1,31 and 1,22. However, the quality of the planting material by the percentage of damaged tubers by pests does not comply with state standard. For growing in the region, early cultivars Nandin, Red Sonya, Kolette, Bellarosa, Vineta, Dzhokonda, Ranomi are more suitable from middle cultivars Dzhelli, Kaptiva and Aluet turned out to be more stable from late ripening Red Fentazi. Due to severe damage by insect pests, especially wireworms, careful sorting and bringing tubers to regulated parameters, liming of soils, and introduction of rotted organic fertilizers are necessary, as well as to place potatoes in crop rotation after legumes and cruciferous crops.


2012 ◽  
Vol 22 (1) ◽  
pp. 117-123 ◽  
Author(s):  
Lemma Ebssa ◽  
Eugene M. Fuzy ◽  
Matthew W. Bickerton ◽  
Albrecht M. Koppenhöfer

1995 ◽  
Vol 20 (1) ◽  
pp. 287-287
Author(s):  
F. P. Baxendale ◽  
A. P. Weinhold ◽  
K. Von Bargen ◽  
R. D. Grisso

Abstract This study was conducted in Lincoln, NE on a golf course fairway. The turf (100% Kentucky bluegrass) was maintained at a mowing height of 5/s inches. Thatch accumulation (finger compressed) in the plot area was 0.5 to 0.75 inches. Field conditions at the study site were: soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6.7; water pH, 7.0. Soil moisture was maintained at approximately 17% by weight, throughout the study. Plots were 40 inches × 15 ft and the experimental design was a RCB with 3 replications. Insecticide treatments were applied on 23 Aug 1994 using either a Cushman prototype subsurface applicator designed to place insecticide granular treatments at the soil-thatch interface (avg depth 0.75 inches), or a Gandy 24H12 drop spreader. Following applications, plots were irrigated with 0.5 inches of water. Posttreatment precipitation totaled 0.42 inches. Treatments were evaluated 21 DAT on 13 Sep by removing from each plot three, 8-inch diam turf-soil cores (1.05 ft2 total area) to a depth of 3 inches and counting the number of surviving grubs. Pretreatment counts indicated 10-40 SMC/ft2 with 80-90% in the third instar stage in the test area.


Soil Science ◽  
1920 ◽  
Vol 10 (1) ◽  
pp. 15-28
Author(s):  
WILLIAM H. WOOD KOMP
Keyword(s):  

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