Black Walnut Trees Produce A Natural Insecticide

Written by Marilyn Pokorney


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The black walnut tree manufactures a substance that is a natural insecticide according to experts atrepparttar 113331 Texas State University in Austin.

American black walnut tress contain a tannic acid chemists call juglone. The reddish yellow substance leaches from leaves, and some believe exudes from roots, or transfers from branches and foliage torepparttar 113332 roots. Tree physiologists agree that roots of other plants that come in contact with those black walnut tree roots die--even other black walnut seedlings.

Care of Cattleya

Written by Robert Roy


Cattleya Care a bit more in-depth This month we are going to go into some detail aboutrepparttar care of cattleya orchids. These orchids are probablyrepparttar 113326 easiest to care for and like all plants need water, light and fertilizer. Playing some nice music or talking to them doesn't hurt either. Most ofrepparttar 113327 wild cattleyas grow in rain forests of South America, namely in Argentina, Bolivia, Paraguay and Mexico. They flourish inrepparttar 113328 Andes from altitudes near sea level to high altitudes of 9 - 10,000 feet. These orchids are truly epiphytes or air plants. So, they are used to being partly covered byrepparttar 113329 canopy ofrepparttar 113330 rain forest and get considerable humidity and bright light to grow. Being inrepparttar 113331 forest as noted above they are used to diffuse light all be it bright light. They generally do not have direct mid day sunlight. The bright light helps them to develop hard pseudopods. The pseudopods arerepparttar 113332 orchids main way to hold water which is so important for their growth and life. It is fromrepparttar 113333 pseudopods thatrepparttar 113334 orchid flowers come from. Being inrepparttar 113335 forest and at various altitudes there are a wide range of temperatures that these plants are used to. Inrepparttar 113336 winter and higher altitudes these plants become accustom to temps which can go as low as 50 - 55 degrees inrepparttar 113337 winter and as high as 80-90 degrees inrepparttar 113338 summer. Humidity isrepparttar 113339 friend to cattleyas. We can understand this from being in rain forests. Most cattleyas do well with being set on humidity trays. These are metal or plastic trays that are filled with pepples and then half full with water. The plant roots cannot sit in water for a long period of time or else they will get root rot. Allow for good air circulation but not sitting in direct aim of an air vent.

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