The heart rot of the flower buds mainly damages the most tender leaves and heart leaves in the center of the canopy, and the base of the young leaves is rotted after the damage(plastic nursery pots wholesale). With a little effort, the heart leaf can be pulled out, the growth point of the base is dissected, and even the heart of the whole plant has a mushy secretion, which has a foul smell, and the diseased tissue can grow white mildew(3 gallon nursery pots supplier). In the early stage of the disease, it can be sprayed with 70% dikesone 800-1000 times liquid or 40% ethyl phosphine aluminum powder 400 times. Once every 7 to 10 days, spray 4 to 5 times.
Control methods: Some are important media for transmitting viral diseases(black plastic nursery pots). When scale insects occur, they are often densely covered on the branches and leaves. The shell and secreted wax cover the surface of the branches and leaves, which seriously affects plant respiration and photosynthesis. Most species endanger plants. The branches and leaves, petioles, fruits, fruit stalks and other aerial parts, a few harmful underground roots(5 gallon nursery pots supplier), roots, tubers and other underground parts, although there are many types of scale insects, but the control techniques are basically similar.
(cheap black small fabric bags wholesale)The disease occurs in the leaves, and the wounds caused by feeding can sometimes induce soft rot, causing the leaves and seedlings to rot and necrosis(plug trays wholesale), which brings many difficulties to the urban greening work. Control method: Spread 8% chlorpyrifos powder on the ground placed on the potted flower(7 gallon nursery pots supplier), completely eliminate it, or spray it with tea seed cake water, water to kill, or use 40% omethoate emulsion and 80% dichlorvos 800 times liquid Spray, every 7 to 10 days, spray 3 to 5 times.
It is best to puncture the stem and drill into the stem for food, causing the branches to break and the upper part to die(plastic nursery pots manufacturers). The snails feed on the leaves and petioles of the flowers, and at the same time secrete mucus to contaminate the seedlings. The pests are scale insects, snails, worms, and leaf curlers. Feeding plant juices with a sucking mouthparts, destroying plant tissues, causing tissue fading and death(14 gallon nursery pots supplier), severely causing dead trees, and some species also excreting honeydew, causing black mold.
(cheap black small fabric bags wholesale)The worms usually occur in 1 generation in 1 year, and the damage is serious in May to June. It is a harmful pest in the stems(wholesale nursery pots). Control method: spray the 50% killing pine oil 800-1000 times liquid or the dichlorvos oil 800-1000 times liquid, or 50% phoxim emulsifiable oil 1000-1200 times liquid, or 20% when the first generation is emerged after wintering in May(15 gallon nursery pots supplier). The pyrethroid emulsifiable concentrate is sprayed 500-800 times, once every 7 to 10 days, and continuously sprayed 3 to 5 times.
Control method: It can be found that the insects can be sprayed with 800-1000 times liquid(square grow pots), or 40% omethoate EC 800 times, every 7 to 10 days, and sprayed continuously for 3 to 5 times. It happened mostly in Xia Qiu, and several new leaves were curled into nests, and the larvae lurked in them to feed the leaves. Control method: It can be sprayed with 90% of trichlorfon crystal 800 times solution or 40% of dimethoate 800 times liquid, once every 7 to 10 days(gallon plant pots wholesale), and sprayed continuously for 3 to 5 times.(cheap black small fabric bags wholesale)