OBJECTIVE To assess the association between Aedes aegypti larvae infestation rates and socioeconomic factors. METHODS Infestation rates in the urban area of the city of São José do Rio Preto, Southeastern Brazil, were calculated in January of 2005 and subsequently geocoded by address. The urban census tracts were grouped by means of main component analysis, thus producing four socioeconomic c...

The paper presents the results of assessment efficiency imazamox based herbicides in spring rape. It’s identified that with application Global, WS (1,2 l/ha) and Ilion, OD (0,8–1,2 number weed plants decreases by 68,8–94,4 %, weight – 86,2–98,8 %. saved yield amounts to 3,4–5,8 dt/ha.

Barley-based cropping systems (BCS) alter barley production by influencing weed infestation rates and soil nutrient dynamics. This two-year field study evaluated the interactive effects of five BCS control strategies (WCS) on properties growth yield barley. Barley was planted in different systems, i.e., fallow-barley (FB), maize-barley (MaB), cotton-barley (CB), mungbean-barley (MuB) sorghum-ba...

to investigate the effect of sowing density and growth habit on yield, yield components and weed community of red bean an experiment was conducted at research farm of zanjan university, during 2009. the experiment carried out using factorial-split plot design in completely randomized block arrangement with three replications. the main plots, included three red bean cultivars (goli, sayyad and d...

The aim of this study is to evaluate the effectiveness of the ‘lure and kill’ technique, commonly called Mass Trapping (MT), compared with the larvicidal technique in olive fruit fly control. Data from different agro-ecological and management conditions were collected in several mass trapping areas in the regions of Tuscany and Liguria during 1999, 2000 and 2001. Data were organized and stored ...

Weed infestation is considered a significant yield reducing factor in maize around the world as well south Asia. Integrated weed management (IWM) recommended to reduce our reliance on synthetic herbicides and sustainable production. In this study, different tillage regimes various allelopathic treatments were integrated for spring planted at Agricultural Research Station, Swabi (KP), Pakistan d...

Agriculture is the process of managing plant communities to obtain useful materials from the small set of species we call crops. Weeds comprise the “other” set of plant species found in agroecosystems. Although they are not intentionally sown, weed species are well adapted to environments dominated by humans and have been associated with crop production since the origins of agriculture (Harlan,...

The paper presents the results of research on identifying biological efficiency soil applied herbicides in oil sunflower under conditions Gomel and Brest regions. In technology protecting from weed plants it’s advisable to use which can control almost completely plant infestation during whole vulnerable period crop, particular within first 40 days vegetation.

in order to evaluate the impact of time of weed control on yield and yield components of two rapeseed cultivars (zarfam and opra) two separate experiments based on each cultivar conducted at shahryar (karaj). the experiment was carried out based on rcbd with three replications and six treatments for each cultivar. treatments were exerted on the different phenological growth stages including the...