Origin and Common Names
Bidens carinata (Hutch.) Cufod., commonly known as the Crested Beggar-tick, is a species of flowering plant that belongs to the Asteraceae family. The plant is native to southern Africa and Madagascar, and it is widely distributed across the region. It has several common names, including the Spencer's beggartick, bird seed beggar-tick or toothed beggarticks, feather-leaf beggar-tick, and kampala beggar tick.
Uses
The Bidens carinata plant has several medicinal uses. It contains essential oils that have antibacterial and anti-inflammatory properties, making it useful in treating various infections and inflammations. In traditional medicine, the plant has been used to treat diarrhea, fever, and respiratory infections. Additionally, the leaves and stems of the plant are edible, and they are used in some cuisines as a vegetable.
General Appearance
The Bidens carinata plant is a herbaceous annual that can grow up to 1.2 meters tall. It has a slender stem that is green or reddish-brown in color. The leaves are arranged oppositely along the stem and are pinnately divided into narrow, hair-like segments. The flowers are small, yellow, and are grouped in clusters at the end of long, slender branches. The fruit is a small, flattened achene with two sharp barbs that allow them to adhere easily to animal fur or clothing, hence the common name "beggar-tick."
Light Requirements
Bidens carinata typically requires full exposure to sunlight or partial shade to grow. It can tolerate some shade, but full shade can negatively impact its growth and flowering abilities.
Temperature Requirements
Bidens carinata grows well in warm weather conditions with temperatures between 15°C and 28°C (59°F - 82°F). It can withstand high temperatures but does not tolerate cold temperatures well.
Soil Requirements
The plant prefers well-draining soils with a pH range between 5.5 and 7.5. It can tolerate various soil types, including sandy loams, gravelly soils, and clay soils. However, it grows best in soils rich in organic matter with good water retention capabilities.
Cultivation methods
Bidens carinata is an annual herbaceous plant that grows up to 1 meter in height. It is commonly grown in tropical and subtropical regions. The plant adapts well to different soil types, although it grows best in well-drained and humus-rich soil. It can be propagated by seeds, which should be sown directly into the soil after the danger of frost has passed.
It is important to prepare the soil before planting by removing any weeds, rocks, or debris. The soil should also be loosened to a depth of at least 15 cm to allow for proper root development. The plant should be placed in an area that receives full sun or partial shade, as it tolerates both conditions well.
Watering needs
Bidens carinata requires consistent moisture to thrive. The plant should be watered deeply once or twice a week, depending on the weather and soil conditions. The soil should be kept moist but not waterlogged, as this can lead to root rot.
It is important to avoid overhead watering, as this can promote the spread of diseases. Instead, water the plant at the base with a soaker hose or drip irrigation system. In periods of drought, the plant can benefit from mulching, which helps to retain moisture in the soil.
Fertilization
Bidens carinata benefits from regular fertilization to promote healthy growth and flowering. A balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium can be applied every two to three weeks during the growing season. Organic fertilizers, such as compost or manure, can also be used to provide nutrients to the soil.
It is important not to over-fertilize, as this can lead to excessive foliage growth and reduced flowering. It is also important to follow the manufacturer's instructions for the amount and frequency of fertilizer application.
Pruning
Bidens carinata does not require pruning, but deadheading spent blooms can help to promote continued flowering. When the plant has finished flowering, it can be cut back to the base to prepare for the next growing season.
It is important to use clean, sharp pruning shears to avoid damaging the plant. Any diseased or damaged leaves or stems should also be removed to promote plant health.
Propagation Methods for Bidens Carinata
Bidens carinata (Hutch.) Cufod., commonly known as Torchlily Beggarticks, is a perennial plant species that belongs to the family Asteraceae. It is native to East Africa, and it prefers to grow in areas that receive full sunlight. This plant is an excellent addition to gardens, and it is easy to propagate propagated from seeds, cuttings, or divisions.
Propagation from Seeds
Bidens carinata is primarily propagated from seeds. Germination is quick and easy, and seeds can be planted directly in the garden or in a seedling tray. Seeds should be planted in a well-draining soil mix and should be kept moist until they germinate. These plants tend to self-seed, and seedlings will often sprout up around the parent plant.
Propagation from Cuttings
Bidens carinata can also be propagated from stem cuttings. Cuttings taken in the spring or early summer tend to have the best success rates. Choose a stem that is healthy and green and strip the leaves from the bottom half of the stem. Dip the cut end into rooting hormone and plant it in a well-draining mix of soil and sand. Water the cutting well and keep it in a warm, bright location, misting it with water occasionally. In a few weeks, the cutting should have rooted and can be transplanted to a larger pot or directly into the garden.
Propagation from Division
Bidens carinata can also be propagated through division. This method should be carried out in the autumn or spring. Gently remove the plant from the soil and use a sharp, sterilised tool to cut the root ball into sections. Each section should have some roots and at least one growing point. Replant the divisions in well-draining soil and water them well. It is important to maintain a consistent moisture level until the plant is established.
Disease and Pest Management of Bidens carinata
Bidens carinata (Hutch.) Cufod. is a plant species from the family Asteraceae commonly known as Spanish needles. Although this plant is relatively resistant to pests and diseases, it can still be affected by certain species.
Common Diseases
Bidens carinata can be susceptible to certain diseases such as powdery mildew, leaf spots, and root rot. Powdery mildew is a fungal disease characterized by the white powdery substance on the leaves of the plant. Leaf spots are bacterial or fungal infections that cause small spots on the leaves, and over time, the spots can grow, cause leaf yellowing, and eventually lead to leaf drop. Root rot is a fungal disease that affects the roots of the plants, causing them to rot, and the leaves eventually wilt and die.
Pest Management
Bidens carinata is prone to insect pests such as aphids, spider mites, and whiteflies. These pests can cause significant damage to the plants if not managed properly. One of the best ways to manage these pests is by using natural predators such as ladybugs or lacewings. These insects prey on aphids and other insects, keeping their population in check. Another option is to use insecticidal soap or neem oil, which are natural products that can be used to control pest populations.
Disease Management
To manage powdery mildew, leaf spot, and root rot, it's important to remove infected plants, leaves, or parts of the plants. It's also crucial to water the plant properly and avoid over-watering, as this can contribute to the development and spread of fungal diseases. Additionally, using a fungicide can help prevent and control fungal diseases in plants, but it's important to follow the instructions of the product to avoid damage to the plant.
Overall, proper care and management of Bidens carinata are necessary to prevent and control pest and disease problems. Maintaining proper watering practices, removing infected plants and leaves, and using natural predators or insecticides and fungicides when necessary can help keep the plant healthy and free of pests and diseases.
