How to prevent and cure pelargonium brown spot?
Prevention and treatment of geranium brown spot: first, the collection and burning of diseased and residual tissue is the key to the prevention and treatment of the disease. Pots or borders should avoid stagnant water and wet environment. Second, spray 50% carbendazim 800 to 1000 times or potassium permanganate 1500 times before and after the attack, once every 10 days, 2 to 3 times in a row.
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Improved Cuttage Propagation of "Geranium"
Cutting propagation of geranium, because its stem is semi-fleshy and contains a lot of water, so there is often decay, affecting survival. For this reason, in the past few years, the author combined with re-cutting after anthesis and made some improvements, so that when the cuttings were cut, the survival rate could be significantly improved. The specific methods are as follows: select sturdy branches on the plant, from the top down, every 4-6 true leaves, or cut a section 7-10 cm long, until the plant is routinely re-cut height after anthesis, and pre-designed into several cuttings. Then, at the distance,
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What are the symptoms of geranium root cancer?
Pelargonium root cancer disease performance: mainly occurs in the rhizome, lateral roots also have sporadic occurrence. The victim forms nodules of varying sizes and shapes. They are usually spherical or oblate, but can also be connected to each other as amorphous primary nodules, gray or fleshy, soft in texture, smooth in surface, and gradually change into brown to dark brown lignified nodules. lignification tubercle surface rough or uneven, cracking. The root system of diseased plants is poorly developed, with few fine roots, slow growth, severe leaf yellowing and early drop.
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