Control of lily blight
Symptoms: the whole plant (including floral organ, leaf, stem, stem base, bulb, root) can occur. The susceptible flower organ withered and withered, and white mildew grew on it; the leaves appeared at the beginning of water immersion, and then withered; the stem and stem base tissue initially appeared water-immersed spots, and then turned brown, necrotic, narrowed, and completely withered above the infected parts. The bulb browned and necrotic. Root browning, spoilage pathogen: the pathogen belongs to Phytophthora fungal parasitic Phytophthora (PhytophthoraparasiticaDast). The hyphae are colorless and septum-free. No haustorium was produced, and the hyphae penetrated directly into the host cells to absorb nutrients. Hyphae and a large number of sporangia were produced in the later stage. The cyst pedicel is mostly unbranched, and the sporangium is terminal and unispore, round. There is a nipple process at the top. Multiple oval zoospores are produced when sporangia germinate.
Route of infection:
1. The pathogen mainly overwintered with the diseased and residual plants in the soil, and the oospores splashed on the plants with Rain Water or irrigation water in the coming year, and the germinating germ tube invaded the host.
two。 Later, the disease spot produces a large number of sporangia, and the sporangium produces zoospores, which spread through Rain Water, irrigation water and so on.
Disease conditions: bulb carrying bacteria, continuous precipitation, poor drainage.
Prevention and control methods:
1. Choose healthy bulbs, set up rain-proof facilities and pay attention to drainage.
2. Chemical protection before the rainy season. At the initial stage of the disease, 25% metalaxyl 800 times solution, 58% metalaxyl manganese zinc 500 times solution, 40% aluminum ethyl phosphate 200 times solution, 64% poison alum wettable powder 500 times solution, or 77% wettable particulate powder 500 times solution. Spray once every 7 to 10 days, 2 times in a row. It is also possible to spray 72% urea manganese zinc (Kakangling) wettable powder 800 times or 72% DuPont Klu or 72% grams of cyanide wettable powder 800 times or 1000 times in time at the beginning of the disease, and 56% of the landscape dispersed micro-granules 800 times.
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Processing method of Lily Beverage
Technological process: selection, peeling → cleaning → drain, weighing → beating → pretreatment → grinding → rough filtration, static precipitation → absorption liquid → fine filtration → high pressure homogenization → degassing → filling → sealing tank → high pressure sterilization → heat preservation → tank → inspection → labeling → storage. Key points of process operation: (1) selection and peeling: select, peel and remove rotten slices, stem stalks and other impurities from the purchased fresh lilies.
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Lily blight
Blight is an important disease of lily, which is widely distributed, mostly occurs in the south, and occasionally occurs in the protected areas in the north. Usually 5% 10% of diseased plants affect the production of lilies to a certain extent, which can reach more than 30% when heavy, resulting in plant death and significantly affecting the yield and quality of lilies. Symptoms: the disease can affect all parts of the lily. The stem infected with disease, initially showed water-immersed light brown to green-brown rot, and gradually expanded up and down, causing the plant to die or fold. The leaves were infected with disease, and the small spots were immersed in water, and then developed into gray-green to dark green spots.
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