The soybean aphid (Aphis glycines Matsumura) is native to China and Japan, and was a new pest in Iowa in 2000. Aphid numbers were high in the 2001, but in 2002 and 2003, aphids appeared to be less of a problem. This small, yellow aphid has distinct black cornicles (“tailpipes”) on the tip of the abdomen and develops colonies on soybean plants as winged and wingless forms. Aphids feed through pi...

Objective: The aim of this study was to determine the effect foliar seaweed treatments on almond cultivation in practice. 
 Material and Method: material consisted ‘Nonpareil’ ’Texas' varieties grafted GF-677 rootstock. 4000 ppm applied form spraying 10th day after full blooming. Results: While nut weights were high fruits control group both varieties, kernel same seaweed-treated group. Co...

The paper deals with abiotic environmental factors affecting the decorative effect created by plants belonging to various biomorphs in conditions of continental climate. authors have identified some problems Siberian landscaping. They are 1) insufficient knowledge landscape architects ecological and biological features trees shrubs their certain zones frost resistance; 2) use ornamental a short...