The cause of the dead cucumber is mainly the root rot caused by Fusarium solani; the flooding of large water, the Phytophthora root rot caused by the accumulation of water in the field; the disinfection near the graft interface is not good, and it is easy to cause blight. In addition, there is a stem nematode, which uses a kiss needle to pierce the root of the root to make the subcutaneous tissue brown and vain, and finally the cortex becomes brown and cracked. At this time, if the stem is mildew, Fusarium oxysporum, Phytophthora or other If the soil-borne bacteria invade the machine, it will lead to more serious disease, and the phenomenon of cucumber death will naturally become more prominent.
The characteristics of cucumber dead tree disease are: the old shed is flooded with water, and the disease is heavy when the water is accumulated in the field; the greenhouse with unfermented and decomposed organic fertilizer (such as chicken fat, duck fat, etc.) is seriously affected, and the incidence of microbial organic fertilizer is applied. Light, basically no cucumber dead disease.
Control measures: Due to the many causes of dead cucumbers, comprehensive control measures must be taken.
First, vigorously promote microbial fertilizer. Using microbial fertilizer to raise seedlings, cultivating disease-free and strong seedlings, and using microbial fertilizer as base fertilizer, it can be carried out by means of strip application, point application or spreading. It can prevent and cure cucumber dead trees caused by various bacteria and has an inhibitory effect on nematode disease. However, it should be noted that the use time should be early, it can be applied to the hole or transplanted after transplanting, and then used after the onset, the effect is greatly reduced.
Second, the use of disease-resistant pumpkin seeds as rootstocks for grafting cucumbers. Grafting knives and utensils should be strictly disinfected during grafting. When watering, the grafting interface must not be allowed to contact the running water to avoid spreading the soil-borne diseases.
Third, the use of high ridge cultivation. Watering the right amount, shortening the watering time, so that the water quickly penetrates into the soil. Prevent flooding of large water, water damage in the field, this method has a good preventive effect on the dead tree phenomenon caused by various soil-borne diseases.
Fourth, chemical control. 77% of the mixture can be used with 30% of the 50% chlorpheniramine mixed with 1:1, or 77% of the urinary 50 grams of galangyi 20 grams of water plus 30 jin, with the aqueous solution sprinkled with the rhizosphere, or Each plant is half a catty, which can prevent root rot and blight caused by various pathogens of cucumber. If the stems of individual plants are large and serious, you can use Bifidomycin 4% water to mix Baikede or The chlorothalonil spray can also be applied directly to the diseased part. This method has special effects on the blight. If there are various dead trees caused by stem nematode damage to the roots, you can use 77% of Doning 50 grams of Garanyi micro 20 grams plus 35 grams of avermine thiophosphorus, add 30 kg of water after mixing, and mix the liquid with it. Irrigation root, half a catty to 1 kg per planting solution, the control effect is remarkable.
The characteristics of cucumber dead tree disease are: the old shed is flooded with water, and the disease is heavy when the water is accumulated in the field; the greenhouse with unfermented and decomposed organic fertilizer (such as chicken fat, duck fat, etc.) is seriously affected, and the incidence of microbial organic fertilizer is applied. Light, basically no cucumber dead disease.
Control measures: Due to the many causes of dead cucumbers, comprehensive control measures must be taken.
First, vigorously promote microbial fertilizer. Using microbial fertilizer to raise seedlings, cultivating disease-free and strong seedlings, and using microbial fertilizer as base fertilizer, it can be carried out by means of strip application, point application or spreading. It can prevent and cure cucumber dead trees caused by various bacteria and has an inhibitory effect on nematode disease. However, it should be noted that the use time should be early, it can be applied to the hole or transplanted after transplanting, and then used after the onset, the effect is greatly reduced.
Second, the use of disease-resistant pumpkin seeds as rootstocks for grafting cucumbers. Grafting knives and utensils should be strictly disinfected during grafting. When watering, the grafting interface must not be allowed to contact the running water to avoid spreading the soil-borne diseases.
Third, the use of high ridge cultivation. Watering the right amount, shortening the watering time, so that the water quickly penetrates into the soil. Prevent flooding of large water, water damage in the field, this method has a good preventive effect on the dead tree phenomenon caused by various soil-borne diseases.
Fourth, chemical control. 77% of the mixture can be used with 30% of the 50% chlorpheniramine mixed with 1:1, or 77% of the urinary 50 grams of galangyi 20 grams of water plus 30 jin, with the aqueous solution sprinkled with the rhizosphere, or Each plant is half a catty, which can prevent root rot and blight caused by various pathogens of cucumber. If the stems of individual plants are large and serious, you can use Bifidomycin 4% water to mix Baikede or The chlorothalonil spray can also be applied directly to the diseased part. This method has special effects on the blight. If there are various dead trees caused by stem nematode damage to the roots, you can use 77% of Doning 50 grams of Garanyi micro 20 grams plus 35 grams of avermine thiophosphorus, add 30 kg of water after mixing, and mix the liquid with it. Irrigation root, half a catty to 1 kg per planting solution, the control effect is remarkable.
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