Garden Notes

Dominion, Volume 36, Issue 25, 24 October 1942, Page 4

Garden Notes

PEACH LEAF-CURL A Deficiency Disease CURRENT NOTES (Br “The Hoe.”), Just a year ago, “The Hoe” told the story of how certain experiments indicated that the troublesome disease known, as peach leaf-curl was a deficiency disease. It was pointed out at the time that three trees were grown in close proximity, one 'being supplied with the “complete” artificial diet, while the others were supplied only with humus matter in varying quantities. The first' tree was smothered in leaf-curl, the second was attacked but resisted the disease, while the third proved to be completely immune. This year, the results confirm the earlier findings. The tree grown on a clayey soil, with nine inches of humus (decayed vegetation), in place of the usual topsoil being quite free of disease, while that treated with artificial fertilizers is badly affected.

It has long been known that there are trace elements, in humus that have so far defied analysis,, which is the reason why it is not at present possible to provide' a synthetic alternative. It is these microscopic - trace .elements which are apparently essential to. the well-being bf peaches ■ and nectarines; for without, them the trees do not remain healthy. In these experiments it is wprthv of note that only vegetable matter in the state of humus was used, and that it had a slightly acid reaction. Publication of the first reference to this subject last year was followed by numerous letters from readers in various districts who quoted similar experiences. Comments from those who have continued the experiments will be welcome. . - ■ Marrows and Pumpkins.

No doubt the high prices which have been ruling for these vegetables, in some cases Sd. a lb., have been responsible for the big demand which seedsmen are experiencing for seed. As many are growing them who have not done so (before, here are a few. words in season: These vegetables do best in a sunny, well-drained situation. Dig holes 18in. deep, 2ft. square and 9ft. apart. Place 9in. of -well-decayed manure or composted material in the hole. Then mix the earth removed with one-third its . bulk of composted matter or very old manure and return it to the hole. This extra material will rise above the surface and give you a “hill.” Water well and allow the soil 1 to consolidate for a few days, then plant two seedlings . (or four seed) co each .hill. Make sure that plants never suffer from lack of water at any stage of their development. Chrysanthemums.

October and November fire the months for planting out all kinds of outdoor chrysanthemums. They require full sun and an open" situation. They prefer a friable soil, rich in humus, but well drained. They need ample supplies of moisture during the growing season, and periodical applications of liquid uianure. If you can get it, alternate cow manure with soot water. Two’to three feet' are usually allowed between each plant. Chrysanthemums always look best when massed.

Greenfly (aphis) likes the warm weather we have been having and promises to become more troublesome than usual. (Spray (periodically to keep him in check. Black leaf 40, nicotine sulphate and -tobacco dust are all useful insecticides for the purpose. The bearded iris season has commenced. Devotees should visit gardens specializing in this popular flower and select their plants while are .in bloom. That is, during the next four weeks. Dahlias can now be safely planted out in most districts. Remember that they are gross feeders and respond freely to liberal supplies of mellowed organic matter.