6 kinds most damaging dieases in watermelon growing
There are some disease during watermelon plantation,especially in the old melon area where continuous cropping.Recently,many farmers have consulted about the problems related to watermelon disease.Here we sort out watermelon diseases identification and hope it is useful to everyone.
Occurrence period: mainly harm unseeded and freshly emerged seedlings.
Identification points: stem base rot, seedlings tripped, white hyphae when high humidity.
Occurance period: whole growth period
Identification point:1.leaf, brown spotted,slightly depressed,yellow external halo,unaffected by veins, perforated when dry. 2.Fruit,The lesion starts dark green and becomes dark brown,and cracks can occur.
Occurence period: late growth period
Identification point: lesion becomes from light green to yellow, and then brown, restricted by veins, mildew when wet.
Occurence period:whole growth period
Identification point: 1.Leaf, from the edge of the leaf, it starts as hot water boil, and the handle is fragile at the later stage.2.Fruit, shrinkage and rot, with stench, white mold.
Occurence period:Extension period, fruit period
Identification point:The diseased part produces white flo.,black rat fecal nucleus.
Occurence period:whole growth period
Identification:The early stage of the lesion is light yellow with yellowish haloes.The middle part of the dark brown middle stage is perforated, and when the humidity is high, the white fungus is thick.
How to control watermelon dieases caused by fungus or bacteria ?
Occurrence period: mainly harm unseeded and freshly emerged seedlings.
Identification points: stem base rot, seedlings tripped, white hyphae when high humidity.
Occurance period: whole growth period
Identification point:1.leaf, brown spotted,slightly depressed,yellow external halo,unaffected by veins, perforated when dry. 2.Fruit,The lesion starts dark green and becomes dark brown,and cracks can occur.
Occurence period: late growth period
Identification point: lesion becomes from light green to yellow, and then brown, restricted by veins, mildew when wet.
Occurence period:whole growth period
Identification point: 1.Leaf, from the edge of the leaf, it starts as hot water boil, and the handle is fragile at the later stage.2.Fruit, shrinkage and rot, with stench, white mold.
Occurence period:Extension period, fruit period
Identification point:The diseased part produces white flo.,black rat fecal nucleus.
Occurence period:whole growth period
Identification:The early stage of the lesion is light yellow with yellowish haloes.The middle part of the dark brown middle stage is perforated, and when the humidity is high, the white fungus is thick.
How to control watermelon dieases caused by fungus or bacteria ?
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