What are the pest control methods for Calathea orbifolia?
Calathea orbifolia has a strong ability to resist pests, but during cultivation it can still be troubled by pests for various reasons. So how do you prevent and control the common pests that appear on Calathea orbifolia?
Calathea orbifolia scale insects
These scale insects are mainly mealybugs, which mostly occur on the underside or edges of leaves and rarely on the upper leaf surface. They can seriously affect the plant's healthy growth, and in severe cases can even cause withered leaves and leaf drop. When attacked by scale insects, the plant is highly susceptible to viral infection. This organism with an extremely strong reproductive capacity can produce many generations within a single year, and May each year is its peak period. Once it occurs, control work becomes relatively difficult.
Control methods
For the control of scale insects, you can spray pesticide on them during the nymph stage. At this time most of the scale insects have just hatched, and their shells have not yet formed, so pesticide can kill them. Spray a 1000-times dilution of 40% omethoate once every 7-10 days.
Calathea orbifolia red spider mites
The harm red spider mites do to Calathea orbifolia is obvious: they affect the plant's normal balanced metabolism, preventing it from developing normally. Red spider mites reproduce extremely quickly in a hot, dry environment, and their damaging capacity is severe.
Control methods
Keep the air circulating and the environment well ventilated, with humidity above 40%. Frequently spraying water on the leaves can prevent red spider mites from multiplying into a disaster. A 1000-times dilution of 20% dicofol can be used for spraying and killing.
In fact, growing a pot of Calathea orbifolia at home is not much trouble at all! Calathea orbifolia is not only beautiful and able to beautify the room, but most importantly, with an extra touch of green in the home, you can even feel happy every day!
Pest control for Calathea orbifolia
Calathea orbifolia scale insects
The scale insects on Calathea orbifolia are mainly mealybugs, which mostly occur on the underside of leaves or at the leaf edges and very rarely on the upper leaf surface. They suck the leaf sap of the plant by piercing and sucking, thereby seriously affecting the plant's healthy growth, and in severe cases can even cause withered leaves and leaf drop.
When attacked by scale insects, the plant is highly susceptible to viral infection. This organism with an extremely strong reproductive capacity can reproduce many generations within 1 year, and May each year is its peak period. Once it occurs, dealing with it becomes relatively difficult.
Control methods
For the control of scale insects, you can spray pesticide on them during the nymph stage. At this time most of the scale insects have just hatched, and their shells have not yet formed, so pesticide can kill them. Spray a 1000-times dilution of 40% omethoate once every 7-10 days.
Calathea orbifolia red spider mites
The harm red spider mites do to Calathea orbifolia is obvious. They are red or orange-yellow all over and have sharp mouthparts, through which they suck the sap and other nutrients from the leaves, affecting the plant's normal balanced metabolism and preventing it from developing normally. Red spider mites reproduce extremely quickly in a hot, dry environment, and their damaging capacity is severe.
Control methods
Keep the air circulating and the environment well ventilated, with humidity above 40%. Frequently spraying water on the leaves can prevent red spider mites from multiplying into a disaster. A 1000-times dilution of 20% dicofol can be used for spraying and killing.
How to grow Calathea orbifolia: cultivation methods and precautions for Calathea orbifolia
Many people are certainly familiar with Calathea orbifolia; it is a very common plant. Calathea orbifolia has high ornamental value, so many people choose to grow it. Surely what everyone cares about most before growing it is its cultivation methods! Let us learn about them together below!
How to grow Calathea orbifolia
1. Strengthen control of room temperature. A nighttime temperature of 18°C is most suitable, and during the day it should reach 20-22°C.
2. Ventilate appropriately at noon to maintain the best growing humidity.
3. Observe and care for it, watch for the occurrence of disease, and do not water too much.
4. Promptly cut off diseased leaves and isolate diseased and residual plants.
5. Strengthen the management of fertilizer and water. When watering, water lightly and slowly, not too quickly, to prevent splashing onto the leaf surface.
Cultivation methods for Calathea orbifolia
1. Temperature. Calathea orbifolia likes a warm, mild environment, so it is not tolerant of heat, fears high temperatures, and has poor cold tolerance. The suitable temperature for its growing environment is 18-30°C. In late spring and early summer, when the ambient temperature exceeds 25°C, build a shade frame and spray water in the environment to create a cool, ventilated, moist and shaded environment. In winter, the ambient temperature must not be lower than 10°C. If the room temperature is below 5°C, Calathea orbifolia will suffer severe cold damage. Generally speaking, by late autumn, Calathea orbifolia should be promptly moved to a sunny spot indoors for protection and overwintering.
2. Light conditions. Calathea orbifolia likes semi-shade and avoids exposure to high-temperature sun; the leaves must never be severely scorched. This causes the leaves to become dull and lusterless and lose their original beauty. Therefore, in winter it should be placed in a greenhouse for supplemental light. In daily life it can be placed indoors as a potted ornamental, and should be placed in front of a window with ample scattered light.
3. Moisture conditions. Calathea orbifolia likes a moist environment, so during the growing season it should be watered thoroughly once a day, and spraying on the leaf surface and around the environment should also be strengthened to maintain a certain moisture and avoid being too dry. In winter, watering should be strictly controlled; overly wet potting soil will lead to poor drainage and root rot, causing the leaves to wither. When spring is in full bloom, the plant will put out new leaves again. The sprouting of new leaves should also not be accompanied by too much watering; as the new leaves increase, the amount of watering should gradually increase, which is beneficial to the plant's healthy growth.
4. Soil conditions. Calathea orbifolia likes a well-drained, fertile, slightly acidic humus soil. The potting soil should be prepared by mixing humus soil fertilizer with river sand.
5. Fertilization methods. During the growing period, Calathea orbifolia should be given a dilute organic fertilizer once a week. Potted plants are suitable for placement in homes and public places for viewing. Entering the hot summer season, when the temperature is above 32°C, fertilization of Calathea orbifolia should be stopped. In late autumn and early winter, stop all topdressing, otherwise it will cause the plant's roots to rot.
Precautions for Calathea orbifolia
In winter, Calathea orbifolia should be kept with the potting soil slightly dry to help it get through the winter. Usually, watering should also not be excessive, otherwise root rot or root diseases may occur; if the plant is too shaded, the silver-gray stripes on the edges of the leaves of Calathea orbifolia will darken, affecting the ornamental effect. When fertilizing, pay attention to the ratio of nitrogen, phosphorus and potassium; do not apply nitrogen fertilizer alone, otherwise it will affect the leaf color.
Pest control for Calathea orbifolia
1. Calathea orbifolia scale insects. Control method: For the control of scale insects, you can spray pesticide on them during the nymph stage. At this time most of the scale insects have just hatched, and their shells have not yet formed, so pesticide can kill them. Spray a 1000-times dilution of 40% omethoate once every 7-10 days.
2. Calathea orbifolia red spider mites. Control method: Keep the air circulating and the environment well ventilated, with humidity above 40%. Frequently spraying water on the leaves can prevent red spider mites from multiplying into a disaster. A 1000-times dilution of 20% dicofol can be used for spraying and killing.
The cultivation methods for Calathea orbifolia are actually quite easy as long as you master the techniques. You can start by understanding its growth habits. In the later stages of cultivation, pest control and fertilizer and water management are extremely important. Only by doing this work well can you ensure that it grows well and has high ornamental value.