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Mulberry (Morus nigra)

ZK30.00

Mulberries are small to medium-sized deciduous trees belonging to the Morus genus in the Moraceae family. These trees are known for their sweet and juicy berries, which come in various colors, including red, white, and black. The most common species cultivated for their fruits are Morus alba (white mulberry), Morus rubra (red mulberry), and Morus nigra (black mulberry).

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Mulberries are small to medium-sized deciduous trees belonging to the Morus genus in the Moraceae family. These trees are known for their sweet and juicy berries, which come in various colors, including red, white, and black. The most common species cultivated for their fruits are Morus alba (white mulberry), Morus rubra (red mulberry), and Morus nigra (black mulberry).

Here’s a more detailed description of mulberries:

  1. Appearance:
    • Leaves: Mulberry trees typically have simple, lobed leaves with serrated edges. The leaves vary in shape and size depending on the species but are often heart-shaped or oval.
    • Fruits: The mulberry fruits are small, typically ranging from 1/2 to 1 inch in length. They can be red, white, or black when ripe, and their appearance varies based on the species.
  2. Flavor and Taste:
    • Red mulberries usually have a sweet and tart flavor, similar to blackberries.
    • White mulberries tend to be sweeter and less tart, often likened to a combination of figs and raisins.
    • Black mulberries have a rich and intense flavor, sometimes described as a mix of blackberry and raspberry.
  3. Cultivation:
    • Mulberry trees are hardy and adaptable, thriving in a range of climates.
    • They are often grown for their delicious fruits but are also cultivated for their leaves, which serve as food for silkworms in the sericulture industry.
    • These trees can grow up to 30-50 feet in height, depending on the species.
  4. Uses:
    • Culinary: Mulberries are enjoyed fresh, dried (similar to raisins), or used in various culinary applications, such as jams, pies, and desserts.
    • Medicinal: In traditional medicine, various parts of the mulberry tree, including the leaves and fruits, have been used for their potential health benefits.
    • Sericulture: Mulberry leaves are the primary food source for silkworms, which produce silk fibers.

Overall, mulberries are prized for their sweet and nutritious fruits, plus they may be used as wind breakers.

Best Planting Time

The best time to plant mulberries depends on your climate and location. In general, the best time to plant mulberries is during the late fall or early spring when the weather is cool and the tree is dormant. This allows the tree to establish its roots before the hot summer weather arrives.

Here are some general guidelines for planting mulberries:

Late Fall: Planting in late fall allows the mulberry tree to establish its root system during the winter months when it is dormant. This can be a good option in areas with mild winters.

Early Spring: Planting in early spring, before the tree starts to leaf out, is another good option. The soil is still cool, which helps the tree adjust and develop strong roots before the summer heat.

When planting mulberries, consider the following tips:

Choose a sunny location with well-drained soil.
Dig a hole that is twice the width of the root ball and the same depth.
Water the tree thoroughly after planting and mulch around the base to retain moisture and suppress weeds.
Prune the tree to remove any damaged or crossing branches.
Water regularly, especially during the first growing season, to keep the soil consistently moist but not waterlogged.

Marturity

The time it takes for mulberry trees to produce their first fruit after planting can vary depending on several factors, including the type of mulberry tree, growing conditions, and how the tree is propagated. Here are some general guidelines for different types of mulberries:

Morus Alba (White Mulberry): White mulberry trees are known for relatively fast growth. If you plant a white mulberry tree from a grafted or well-established sapling, you may start to see fruit production within 1 to 2 years after planting. However, it can take longer if you start from a seed or smaller seedling.

Morus Rubra (Red Mulberry): Red mulberry trees tend to take a bit longer to start producing fruit compared to white mulberries. You may need to wait 2 to 4 years or more before you see significant fruit production.

Morus Nigra (Black Mulberry): Black mulberry trees can take the longest to produce fruit. It's not uncommon for black mulberry trees to take 4 to 6 years or more before they start bearing fruit. The ones grown by Organic Farm 7 start fruiting within one year.

Keep in mind that these are rough estimates, and actual fruiting times can vary depending on factors such as local climate, soil quality, care, and pruning. Proper care and maintenance, including adequate watering, fertilizing, and pruning, can help encourage earlier fruit production. Additionally, mulberries grown from cuttings or grafted plants are likely to fruit earlier than those grown from seeds.

It's also important to note that mulberry trees can continue to produce more fruit as they mature, and the fruit yield may increase over the years. Patience is key when growing mulberry trees, as they can be long-lived and provide delicious fruit for many years once they start bearing.

Size Of The Hole

The size of a hole for a Mulberry tree when planting should be 60cm (length) by 60cm (width) by 60cm (height).
Prepare the soil by adding organic matter and ensuring good drainage before planting.

Spacing

The ideal spacing for Mulberry trees is 4m between rows and 4m within the row, this is to ensure that you cater for good air circulation and leave room for growth of the plant. Note that Mulberry trees thrive in full sunlight, so choose a location that receives at least 6-8 hours of direct sunlight per day.

Irrigation

Establish a Watering Schedule:
Water at least 3 times a week during all seasons.
Water deeply to saturate the root zone at least twice a week.

Deep Watering:
When irrigating, apply water slowly and deeply to encourage deep root growth. This helps the plants to access water stored deeper in the soil, making it more resilient to drought.

Mulching:
Apply a layer of organic mulch, such as wood chips or straw or compost, around the base of the plants to help conserve soil moisture, regulate soil temperature, and reduce weed competition.

Micro-jet irrigation is an excellent choice for the plants because they deliver water directly to the root zone.

Water atleast 3 times a week.

The best time to water is in the early morning hours before sunrise and in the evenings when the rate of evaporation is very low. You may choose either time for you to water your plants.

Fertilization

Organic fertilization for plants involves using natural and sustainable materials to provide essential nutrients to the plants. Here are some organic fertilization methods and tips for growing healthy trees:

Organic Liquid Fertilizers: You can make organic liquid fertilizers by steeping comfrey/ tithonia or compost or rotten manure or other organic materials in water. Use the strained liquid as a foliar spray or soil drench to provide nutrients to your plants. Apply liquid fertilizer every after 2 weeks.

Compost: Compost is a valuable organic fertilizer that improves soil structure and provides a wide range of nutrients. You can make compost from kitchen scraps, yard waste, and other organic materials. Apply a layer of compost around the base of your plants every 2 months.

Well-Rotted Manure: Well-rotted manure from animals like cows, goats, horses, or chickens is rich in nutrients and can be used as an organic fertilizer. Apply it as a top dressing around the fruit tree, avoiding direct contact with the stem to prevent the plant from rotting. Apply this every 2 months.

Organic Mulch: Organic mulch, such as straw, leaves, or wood chips, can help retain soil moisture and suppress weeds. Apply a layer of mulch around the base of your plants to conserve moisture and provide slow-release of nutrients as it breaks down. Replenish whenever the mulch reduces.

Worm Castings: Worm castings, also known as vermicompost, are rich in nutrients and beneficial microorganisms. Incorporate worm castings into the soil or use them as a top dressing for the plants. Apply every 2 months.

Common Diseases

Mulberry trees can be susceptible to various diseases, which can affect their growth and fruit production. Here are some common diseases that can affect mulberry trees:

Powdery Mildew (Microsphaera alni or Phyllactinia corylea): Powdery mildew is a fungal disease that appears as a white, powdery substance on the leaves, shoots, and fruit of mulberry trees. It can weaken the tree and reduce fruit quality. Proper pruning and maintaining good air circulation around the tree can help prevent powdery mildew.

Leaf Spot Diseases: Several fungal leaf spot diseases can affect mulberry trees, causing small, dark spots on the leaves. These include diseases caused by species of Cercospora and Septoria. These diseases are usually cosmetic and don't typically cause severe damage, but they can reduce overall tree health if left untreated.

Rust (Phragmidium spp.): Rust diseases can cause orange or rust-colored pustules on the undersides of mulberry leaves. These pustules release spores that can spread the disease. Regular pruning to improve air circulation can help prevent rust.

Anthracnose (Glomerella spp.): Anthracnose is a fungal disease that can affect mulberry trees, causing dark lesions on leaves, twigs, and fruit. It can lead to reduced fruit quality and yield. Pruning infected branches and maintaining proper sanitation can help control anthracnose.

Bacterial Blight (Pseudomonas syringae): Bacterial blight can cause dark, water-soaked lesions on leaves and fruit. It can also lead to wilting and dieback of branches. There is no cure for bacterial blight, so prevention through good cultural practices, such as avoiding overhead watering, is essential.

Root Rot (Various fungi): Root rot can occur when mulberry trees are planted in poorly-draining soil or when they are overwatered. It can cause the roots to decay, leading to wilting, reduced growth, and eventual death of the tree. Proper soil drainage and watering practices are crucial to prevent root rot.

Crown Gall (Agrobacterium tumefaciens): Crown gall is a bacterial disease that can cause tumors or galls to form on the lower trunk and roots of mulberry trees. These galls can weaken the tree and disrupt nutrient and water flow. Infected trees may need to be removed to prevent the spread of the disease.

To prevent and manage these diseases, it's important to practice good sanitation, provide proper care and maintenance, and choose disease-resistant mulberry tree varieties when possible. Regular pruning to remove infected branches and ensuring that the tree has adequate air circulation can also help prevent the spread of diseases.

Disease and Pest control

Organic methods for controlling pests and diseases in mulberry trees are effective and environmentally friendly. Here are some organic techniques you can use to manage common pests and diseases:

1. Pruning and Proper Planting:

Pruning: Regular pruning helps improve air circulation and sunlight penetration within the tree's canopy, reducing the risk of fungal diseases like powdery mildew and rust. It also removes diseased or infested branches.

Proper Planting: Ensure your mulberry tree is planted in well-draining soil and receives the right amount of sunlight. Healthy trees are less susceptible to pests and diseases.

2. Beneficial Insects:

Ladybugs: Release ladybugs in your garden. They feed on aphids and other small insects that can harm mulberry trees.

Predatory Wasps: Encourage predatory wasps, such as parasitoid wasps, which help control caterpillar pests.

3. Neem Oil:

Neem oil is a natural pesticide that can be used to control a wide range of pests. It works by disrupting the life cycle and feeding habits of insects. Dilute neem oil according to the manufacturer's instructions and spray it on affected parts of the tree.

4. Insecticidal Soaps:

Insecticidal soaps are gentle on beneficial insects and can be effective against soft-bodied pests like aphids and mites. Follow the product label for application instructions.

5. Homemade Remedies:

Garlic and Pepper Spray: Create a mixture of crushed garlic and hot peppers steeped in water. Strain the mixture and add a small amount of liquid soap. Spray this solution on your mulberry tree to deter insects.

Diatomaceous Earth: Sprinkle food-grade diatomaceous earth around the base of the tree to deter crawling insects. This natural substance damages the exoskeletons of insects.

6. Companion Planting:

Plant companion plants near your mulberry tree that can help deter pests. For example, marigolds can deter aphids and nematodes.

7. Beneficial Nematodes:

Beneficial nematodes are microscopic organisms that can help control soil-dwelling pests like root-knot nematodes. You can apply them to the soil around your mulberry tree.

8. Home made organic pesticides:

Neem tea:
Create a home made spray by boiling neem leaves with water. Strain the mixture and use it to deter and destroy a wide range of pests and fungal infections.

Aloe Vera liquid:
Create a home made spray by getting 5 to 10 leaves of Aloe vera, then chop them into tiny pieces to expose the gelly to mix with water. After 2 hours strain the mixture and use it to deter and destroy a wide range of pests and fungal infections.

Liquid soap and cooking oil spray:
Create a home made spray by mixing equal quantities of cooking oil and liquid soap (any brand of your choice), then shake the mixture until it looks yorgurt like and later get 50ml of the mixture and add to a 16L knapsack sprayer. Mix with water and use the mixture to deter and destroy any type of pests. Spray daily until the pests are gone.

9. Healthy Soil and Mulching:

Maintain healthy soil by adding organic matter like compost. Healthy soil promotes strong, disease-resistant plants.

Mulch around the base of the tree to help retain soil moisture and discourage weeds that may harbor pests.

10. Cultural Practices:

Remove fallen leaves and fruit promptly to reduce disease and pest habitat.

Avoid overhead watering, as it can promote fungal diseases. Instead, use a drip irrigation system or water at the base of the tree.

Remember that prevention is often the best approach to managing pests and diseases in organic gardening. Regularly inspect your mulberry tree for signs of trouble and take action as soon as you notice any issues. Integrated pest management (IPM) techniques, which combine multiple strategies for pest and disease control, can also be very effective in organic mulberry cultivation.

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