Strawberry diseases and control measures _3524 -

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Strawberry Diseases and Their Control Measures

Common fields and the incidence of fruit-based. Incidence of first fruits of the young fruit near the base of the calyx Department or the edge of the light brown parcel Shuizi Zhuang, slightly irregular sunken spots, the Ministry of soft disease. Later the Ministry of dense gray mold disease tilting the slightest touch to smoke fog dispersal addition, petal, calyx,[link widoczny dla zalogowanych], pedicel CLP disease control measures 1.2.1 1.2 Amoy Takakuro Yu, the implementation of plastic film over plot coverage. General Goushen should reach 0304, while the plastic film cover to near the ditch to reduce the incidence of fruit contact with soil to speed up drainage, reduce the damage. 1.2.2 The one-year plant to strengthen clean park. Strawberries planted a one-year, the timely removal of old branches fruit. At the end of February early March strawberry germination, with 0.81 units crossing the US-degree agents Qing Yuan Shi sulfur to reduce bacteria base, to prevent the continuous cropping. 1.2.3 by laying organic fertilizer, apply nitrogen, phosphorus, potassium, control nitrogen fertilizer to prevent excessive growth. While the density control in the 8000 / acre or less, to facilitate air and light. 1,2.4 spraying control, do a good job starting early prevention from squaring, 1 spray every 710 days. 3 consecutive change. Pharmacy choice of procymidone 50% or 80% WP Mancozeb WP. 2 whole plant can be symptoms of powdery mildew disease 2.1. Leaves victims. Early show dark spots, large and small, and then to generate lesions in the dorsal white powder later leaves shrink, Kujiao. Li Changqing stop the development of young fruit victims. E clouds layer of white powder in the fruit. The disease occurs in the shed and greenhouse 2.2 more serious measures against Hao spraying 2-3 Hom breeding period. Or colonization after spraying 1-2 times before flowering. Better pharmaceutical J 'selection of 25% of the acid r pyrimidine, 25% of the triazole ten ketone,[link widoczny dla zalogowanych], etc. 3 chlorosis 3.1 Og-like infection of the disease who shoot poor growth. F root to grow into the young leaves brown, the performance of a new deformity. The three leaflets in 1 ~ 2 was to become narrow, showing boat-shaped: Yese yellowing,[link widoczny dla zalogowanych], rough surface dull. Even after the dead leaf edge browning inward 3.2 wilting main measures for prevention of soil disinfection. Li received at the end of strawberry fruit, all plants will be the ground by excavation and tilling the soil, and the whole ridge into a stretch of Huo after the rainy season in the hot hot season, in furrow irrigation question, and then covered with plastic sheeting to rely on the sun about 1 month irradiation, reached under the plastic sheeting around 5O temperature, soil fumigation can play a role in four anthrax-like blast damage seedling 4.1 based. In taking on the stem and petiole lesions produce black depression, tree planting and seedling wilt wither, root and shoot outside the Ministry of brown. 4.2 The control measures in the seedbed, transplanting seedlings mother plants survived to old stem elongation medication: The wettable powder of chlorothalonil spray Jing 1 every 710 days, were sprayed 2-4 times per acre spraying liquid 50kg. 5 5.1 symptoms of virus disease symptoms of virus diseases of strawberry are five: �� irregular chlorotic mottle-type leaf, yellow, showing mottled: @ brown edge rule blade edges brown; �� necrotic lesions type: leaf necrotic lesions of necrosis, necrotic lesions were irregular shaped; @ amidine dark type. In the seedling stage,[link widoczny dla zalogowanych], leaves a positive pulse is black. Opposite leaf was brown veins: �� crinkle leaf shrinkage type, not flat or spoon-shaped leaves. A majority of a disease, a small number of more than one disease. Higher summer temperatures, small forest disease, the symptoms not obvious or disappear, but the yield and quality significantly. 5.2 The control measures have been found today, Special attention should also control aphids in the aphid serious regional, 6-7.9. I5 every 10 days for a quick kill King Ding spray 1. Have a good effect of a fat strawberry disease control, divided by the respective E special ballast control measures, the following should be much more comprehensive measures adopted. 5.2.1 seedlings commonly used non-toxic. Seedlings and strict quarantine and disinfection of the root raised during the rooting powder, while the ratio increases by 01% ammonium Dyson,[link widoczny dla zalogowanych], or thiophanate-methyl WP 1000 times 5 minutes soaking plants have good anti- 5.2.2 The effect of soil treatment. Especially before the onset of the land for a plant with 65% WP per acre of ammonium Dyson 1kg, 15k were mixed with fine soil scouring Huo Xueshi = 5'2 .3 or on the ground with straw mulching to improve soil temperature. Accelerated plant growth, improve resistance to disease, but also to reduce soil-borne diseases opportunity to 5.2.4 to enhance cultivation and management, improve the field of 11 students: In the full maturity of organic fertilizer applied at the same time. Results sets topdressing fertilizer on growth of plant health that timely removal of old leaves diseased leaves Mu, removal of diseased plants destroyed anti-l Bu too close, to prevent the grass shortage. 5.2.5 Note on a regular basis to prevent the tool carrier for species. Generally planted in the new area within 2km around the park without the old time. Should be 4 to 5 years for a second species. Around the old park. 2 to 3 years should be changed species. However, in case of strawberry growing recession, lower production, to be ahead of it another Received: 2000 A l1-0841

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