NOW IS THE TIME...
by Eunice Messner
FUTURE CRFG MEMBERS? The Inland Empire chapter members are to be commended. They have taught 350 high school students how to graft. They bought M7 rootstock for $1 (schools reimbursed them) from Willamette Nursery and used Fuji apple scions. The students had approximately 90% take. In the same correspondence with Mits Kawahara, he again lauded the use of 'Turpentine' rootstock, saying: "It is far superior than any other he has tried. 'Turpentine' helps to keep the mangos from falling when the weather turns hot. It has the ability to suck up water to keep the tree healthy when the temperature goes over 100 degrees. All the Florida trees that I have tried drop their fruit when the temperature rises."
UNUSUAL FRUITS There has been considerable e-mail inquiries of late for the source of two fruits, Sweet lemon and 'Yuzu' sour orange. According to Mits, "'Yuzu' is used in Japanese cooking; the skin is for flavoring dishes such as pickled cucumbers and pickled cabbage. The juice is used to flavor sushi, rice and other dishes. Recipes can be found on the internet."
Mits grows these trees but can only ship them to areas in Southern California because of the tristezia virus disease prevalent here. He sells 2 yr. old trees, 3' high, for $15. To produce fruit that will have the same flavor as the trees in Japan, Mits uses the same rootstock used there, Trifoliate orange. He says, "Trifoliate tends to make the fruit better tasting and the tree more cold tolerant. They live as long as 100 years but do grow slowly."
There is both a sweet lemon and a sweet lime. The sweet lemon is much sweeter of the two but with a little acidity. Many call them insipid in flavor, but not so if they were part of your culture and you enjoyed special drinks made with them. The true sweet lemon originated in Pomona, CA at the turn of the century. The wholesale La Verne Nursery grows them, so your local nursery could order one for you. Atkins Nursery in Fallbrook and Bill Nelson of Pacific Tree Farms did stock them, but call first.
NEW SOIL SANITATION TECHNIQUE This method advocates tilling in at least 11 pounds of grass clippings or other fresh plant residues per square yard. Then water well and cover with heavy (.135 mm) opaque plastic for 15 weeks.
It is important to do this during warm summer conditions and to keep the edges sealed by covering with dirt or rocks. The resulting anaerobic conditions should cause the demise of nematodes and most soil borne diseases.
NEW CODLING MOTH LURE An Agricultural Research entomologist has a lure known as the pear ester, it attracts both female and male codling moths. Pheromones, sex hormones produced by the females, are widely used in monitoring and mating disruption programs, but only attract male moths. Capturing female moths, has an even greater potential to reduce offspring. Codling moths are the most severe and widely distributed pest of apples, pears and walnuts in the world. Uncontrolled, the larvae-the "worm in the apple"-can destroy up to 95 % of an apple crop and up to 60% of a pear crop. In walnuts, the larvae damage the nuts and create holes in the hull and shell that can allow fungi to enter. Through a cooperative research and development agreement, Trece Inc, of Salinas, CA is developing commercial monitoring tools using the pear ester. Trece also plans to include the attractant in a sprayable lure formulation known as an "attracticide," which contains small amounts of insecticides.