Toosendanin as one kind of plant pesticide exists in the fruits, barks, and leaves of Melia azedarach L. (chinaberry tree). To obtain toosendanin, the sample was defatted with petroleum ether, extracted with ethanol; then the solution was concentrated, and extracted with ethyl acetate. Uniform design and regression analysis were employed to establish a model of extraction and optimize the proce...

Chinaberry (Melia azedarach L.) is a beautiful tree indigenous to the Himalayas that grows as a native plant in Iran. Symptoms similar to bacterial gall have been observed on the crown, shoot and twig of chinaberry, a recent landscape tree since 2003-2004 in Shiraz, Fars province, south of Iran. A gram negative bacterium was isolated from the galls. The isolates did not produce fluorescent pigm...

chinaberry (melia azedarach l.) is a beautiful tree indigenous to the himalayas that grows as a native plant in iran. symptoms similar to bacterial gall have been observed on the crown, shoot and twig of chinaberry, a recent landscape tree since 2003-2004 in shiraz, fars province, south of iran. a gram negative bacterium was isolated from the galls. the isolates did not produce fluorescent pigm...

the two-spotted spider mite, tetranychus urticae koch, is a polyphagus pest which infests wide range of field, garden and greenhouse crops worldwide. pesticide applications against this pest have caused development of resistance, undesirable effects on non target organisms and environment and secondary pest outbreak. in recent years, herbal essential oils have received attention as natural plan...

abstract in recent decades the use of environmentally friendly biological and non-chemical materials for the control of plant pests has found good position. due to this reason the effect of some plant extracts (kernel extract of azadirachta indica with 1:12.5, fruit extract of chinaberry, fruit extract of iranian lilac and leaf extract of chinaberry with 1:3 with water), cotton seed oil and nee...

The crown width of a tree is very important parameter. It responsible for survival and producing the food whole tree. They produce oxygen, filter out dust other airborne pollutants from air, purification water, generate shadow determine scenic beauty trees forests. crowns have significant effect on microclimate. But measuring difficult task that needs much money, time effort. Thus this study ai...