scholarly journals Yield losses, chemical control, and epidemiology of fungal leaf blights on seed corn in Iowa

1993 ◽  
Author(s):  
Jose Mauricio Rivera Canales
Keyword(s):  
Chemical Control ◽  
Yield Losses ◽  
Seed Corn ◽  
Leaf Blights

scholarly journals Population Incidence and Efficacy of Chemical Control against Rice Leaffolder (Cnaphnalocrocis medinalis Guenee) (Pyralidae: Lepidoptera)

2019 ◽  
pp. 1-7
Author(s):  
Muhammad Bilal ◽  
Mubashar Hussain ◽  
Muhammad Umer ◽  
Numan Ejaz ◽  
Hamza Armghan Noushahi ◽  
...  
Keyword(s):  
Field Experiment ◽  
Chemical Control ◽  
Leaf Damage ◽  
Yield Losses ◽  
Kharif Season ◽  
Population Incidence ◽  
Lambda Cyhalothrin ◽  
Percent Increase ◽  
Rice Leaffolder ◽  
Research Institute

Rice leaffolder has become a serious pest in the last two decades. It causes up to 50 to 70 percent leaf damage and consequently up to 46 percent yield losses in case of severe infestation. A field experiment was conducted at Rice Research Institute, Kala Shah Kaku Punjab Pakistan in which population incidence of rice leaffolder and efficacy of different insecticides evaluated. Population observed form end August to termination of Kharif season. Highest population of rice leaffolder was recorded in September and October. Insecticides, proved, viz., Karate 2.5EC (Lambda cyhalothrin) @ 160ml 86.65%, Pravo 10EC (fipronil +lambda cyhalothrin) @ 300 ml 85.25%, Hoopoe 4G (cartap hydrochloride) @ 9 kg 85.85, Oncol 3G (Benfuracarb) @8 Kg 89.53%, Mover Plus 4.3G (cartap hydrochloride) @ 4.5 Kg 82.77%, Star 4G (cartap hydrochloride) @ 9 kg 78.40%, Padan 4G(cartap hydrochloride) @ 9 kg 86.83%, Virtako 0.6G (thiamethoxam + chlorantraniliprole) @ 4 kg 72.05%, Ferterra 0.4G (Chlorantraniliprole) @ 4 kg 91.21%, Paidan 8G (Cartap hydrochloride) 8 kg 84.18% effective. Insecticide treatedplots yielded higher than the control. Highest 3.62 t/ha was recorded with Hoopoe 4G and lowest with Star 4G 2.99 t/ha as compared to 1.95 t/ha of control. All treatments were statistically at par with each other but significantly different from control. In case of yield benefits, 34.78 percent to 46.27 percent increase was recorded. All the treatments were proved statistically at par against beneficial fauna.

Chemical control of the seed-corn maggot,Hylemya platura (Meigen), and seed-piece decay in potato seed pieces

1971 ◽  
Vol 48 (10) ◽  
pp. 374-380 ◽  
Author(s):  
B. J. Landis ◽  
Jfrome A. Onsager ◽  
Lee Fox ◽  
L. L. Foiles
Keyword(s):  
Seed Piece ◽  
Chemical Control ◽  
Potato Seed ◽  
Seed Corn ◽  
Seed Piece Decay

scholarly journals (203) Evaluation of Phostrol for Downy Mildew Control on Pumpkin (C. pepo)

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1055A-1055
Author(s):  
Winfred Cowgill ◽  
Kristian Holmstrom ◽  
Andrew J. Wyendandt ◽  
Jon Clements ◽  
Martha Maletta
Keyword(s):  
New Jersey ◽  
Downy Mildew ◽  
Chemical Control ◽  
New Product ◽  
Yield Losses ◽  
Marketable Yield ◽  
Weekly Basis ◽  
Sodium Potassium ◽  
Control Programs ◽  
Industry Standard

Downy mildew (DM) is a serious foliar fungal disease of cucurbits. DM can cause yield losses for New Jersey growers if not properly controlled. In 2004, five chemical control programs were evaluated in a research trial at the Rutgers Snyder Research and Extension Farm (Hunterdon Co.). Materials evaluated were: 1) Phostrol, 5 pt/A; 2) Phostrol, 5 pt/A plus Bravo WS, 3 pt/A; 3) Flint WDG, 2 oz/A alternated with Bravo WS, 3 pt/A plus Nova 40W, 5 oz/A; 4) Maneb 75DF, 2 lb/A plus Champ Formula 2 Flowable, 1 1/3 pt/A; and 5) untreated control. All fungicide programs were applied weekly. Phostrol (Nufarm Americas, Inc.) is a new product with systemic mode of action that is newly labeled for cucurbits for control of DM, but not powdery mildew (PM). The active ingredients are mono- and dibasic-sodium, potassium, and ammonium phosphates. Phostrol and Phostrol plus Bravo were evaluated against industry standard fungicide programs which include alternating chlorothalonil + myclobutanil with strobiluron chemistries on a weekly basis. Fungicide applications were made weekly beginning at first observance of DM in the field on 23 July. Plots were rated for DM and PM incidence and extent of defoliation on 6 Aug. and 24 Sept. Phostrol plus Bravo applied on a weekly basis (7 to 10 days) provided the best control of DM, which appeared much earlier in the season than usual in northern New Jersey. Treatments Phostrol, Flint alternated with Bravo + Nova, Maneb + Champ reduced DM compared to the UTC. Maneb plus Champ provided the best control for PM. At harvest, fruit was graded and weighed. Marketable yield from Phostrol, Phostrol plus Bravo and Maneb plus Champ treatments was significantly higher than the UTC and Flint/Bravo plus Nova treatment. Handle quality was not affected by treatment.

Iron and chemical control of breathing

Pneumologie ◽  
2010 ◽  
Vol 64 (01) ◽  
Author(s):  
J Antosiewicz ◽  
M Walski ◽  
M Pokorski
Keyword(s):  
Chemical Control ◽  
Control Of Breathing

Weed Management in Small Grains Harvested for Grain

EDIS ◽  
2020 ◽  
Vol 2020 (3) ◽  
Author(s):  
Jason Ferrell ◽  
Gregory MacDonald ◽  
Pratap Devkota
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Chemical Control ◽  
Management Practices ◽  
Good Management ◽  
Small Grains ◽  
Crop Competition

Successful weed control in small grains involves using good management practices in all phases of production. In Florida, winter weeds compete with small grains for moisture, nutrients, and light, with the greatest amount of competition occurring during the first six to eight weeks after planting. Weeds also cause harvest problems the following spring when the small grain is mature. This 4-page publication discusses crop competition, knowing your weeds, and chemical control. Written by J. A. Ferrell, G. E. MacDonald, and P. Devkota, and published by the UF/IFAS Agronomy Department, revised May 2020.

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