کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8881695 | 1624913 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Field efficacy and persistence of synthetic pesticidal dusts on stored maize grain under contrasting agro-climatic conditions
ترجمه فارسی عنوان
کارایی و پایداری مزارع آفت کش های مصنوعی بر روی دانه های ذرت ذخیره شده تحت شرایط کنتراست شرایط آب و
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Grain storage trials were conducted in two districts of Zimbabwe with contrasting agro-climatic conditions (mean annual temperature of 18-30â¯Â°C and 28-42â¯Â°C; total rainfall of 750-1000â¯mm per annum and <450â¯mm per annum; respectively) to determine the comparative efficacy of commercially-available grain storage synthetic pesticides under contrasting climatic conditions. The five grain protectants, namely Shumba super dust® (fenitrothion 1% + deltamethrin 0.13%), Actellic gold dust® (pirimiphos-methyl 1.6% + thiamethoxam 0.36%), Super guard® (pirimiphos-methyl 1.6% + permethrin 0.4%), Chikwapuro® (pirimiphos-methyl 2.5% + deltamethrin 0.1%) and Ngwena yedura® (pirimiphos-methyl 2.5% + deltamethrin 0.2%) were evaluated at manufacturer's rates on stored shelled maize. The trials were conducted for a 40 week-long storage season in 2014/15 and again in 2015/16. Samples were analysed for insect grain damage, total insects per kilogram, grain weight loss, insect feeding dust and chaff as well as grain moisture content. Temperature and relative humidity within stores were recorded using data loggers. The results highlighted the generally poor efficacy of the synthetic pesticides under both cooler and hotter climatic test conditions. The pesticides failed to prevent insect grain damage or suppress insect pest numbers. Only Actellic gold dust®, introduced in the 2015/16 storage season was effective under both the agro-climatic conditions. The current study suggests that only Actellic gold dust® can be recommended for smallholder farm grain protection under both cooler and hotter climatic conditions. The findings confirm the frequent claims of smallholder farmers in east and southern Africa regarding poor storage pesticide performance, and emphasize the need to develop alternative effective storage insect pest control options.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Stored Products Research - Volume 76, March 2018, Pages 129-139
Journal: Journal of Stored Products Research - Volume 76, March 2018, Pages 129-139
نویسندگان
Shaw Mlambo, Brighton M. Mvumi, Tanya Stathers, Macdonald Mubayiwa, Tinashe Nyabako,