Bacterial canker
Pseudomonas syringae
Also Known As - Bacterial blossom blast,Bacterial canker and blast,Bacterial leaf spot,Angular leaf spot,Leaf spot Angular,Citrus blast,Bacterial blightWhat is Bacterial canker (Pseudomonas syringae)?
Pseudomonas syringae is a bacterial pathogen that causes economically important diseases in the Pacific Northwest. It infects a wide range of fruits, vegetables, and ornamental plants, including plums, cherries, apricots, peaches, and ornamental Prunus species. Common symptoms include flower blast, dead buds, necrotic leaf spots, fruit spots, shoot-tip dieback, stem cankers, and inhibited seed germination. Disease severity varies, with factors like wounds, plant dormancy, soil conditions, and dual infections increasing susceptibility.
How dose Bacterial canker (Pseudomonas syringae) occur?
Pseudomonas syringae reproduces through binary fission, dividing into two identical daughter cells. It rapidly multiplies in favorable conditions of high humidity and moderate temperatures. The bacterium can survive in infected plant debris, weeds, and soil. Spread occurs through water splashes, wind, insects, and contaminated tools. It can also establish latent infections within plant tissues, aiding its long-term persistence and further spread.
Symptoms
1 - Effects on Plants
It can cause various diseases in plants, including leaf spots, blights, cankers, and wilts. It damages plant tissues, reducing photosynthetic capacity and overall plant vigor. Infected plants may experience stunted growth, chlorosis, necrosis, and premature defoliation.
2 - Effects on Soil
The bacteria can persist in soil, particularly in plant debris, affecting soil health and nutrient cycling. It can lead to a decline in soil fertility and disrupt the microbial community, impacting beneficial soil organisms and their functions.
3 - Effects on the Environment
• Pathogens can potentially impact the environment through the contamination of water sources, especially if transmitted via irrigation or rainwater runoff. • The bacteria's introduction to new ecosystems, particularly in agricultural or natural environments, can disrupt local plant populations and ecosystems' balance.
Solutions
1 - Cultural Practices and Crop Rotation
• Implement good sanitation measures by removing and destroying infected plant debris. • Rotate susceptible plant species with non-host plants to disrupt the disease cycle. • Maintain proper plant nutrition and avoid excessive nitrogen fertilization.
2 - Integrated Pest Management (IPM) and Resistant Varieties
• Implement an IPM approach, combining various strategies to manage the disease effectively. • Choose and plant resistant or tolerant varieties to reduce susceptibility. • Explore the use of beneficial microorganisms or biocontrol agents to suppress bacterial growth.
3 - Chemical Control
Chemical Control: Antibiotics such as streptomycin and oxytetracycline, as well as copper-based fungicides or bactericides like copper sulfate and copper hydroxide, can be used to treat Pseudomonas syringae infections. Follow label instructions and apply at the right time and concentration.
Susceptible Species
Strawberry Tree
Common Paw Paw
Akane Apple
Ambrosia Apple
Belle de Boskoop Apple
Braeburn Apple
Candied Apple Flowering Crab
Chehalis Apple
Cortland Apple
Cox's Orange Pippin Apple
Dolgo Apple
Donald Wyman Flowering Crab
Elstar Apple
Gala Apple
Golden Delicious Apple
Golden Russet Apple
Granny Smith Apple
Gravenstein Apple
Honeycrisp Apple
Jonagold Apple
Jonathan Apple
Liberty Apple
Lodi Apple
Louisa Flowering Crab
Macintosh Apple
Melrose Apple
Norland Apple
Pink Lady Apple
Red Delicious Apple
Red Jewel Flowering Crab
Scarlet Pippin Apple
Sentinel Flowering Crab
Snowdrift Flowering Crab
Spartan Apple
Summerland Apple
Wealthy Apple
Yellow Transparent Apple
Zestar Apple
pineapple guava
sweet almond bush
apple serviceberry
apple serviceberry
pineapple
pineapple
variegated pineapple
custard apple
strawberry tree
Romanesco broccoli
broccoli
broccoli raab
star apple
pineapple broom
pricklyburr
argyle-apple
pineapple lily
pineapple lily
pineapple lily
pineapple lily
flowering crabapple
flowering crabapple
flowering crabapple
crabapple
apple
Siberian crabapple
flowering crabapple
flowering crabapple
crabapple
flowering crabapple
crabapple
apple
Japanese crabapple
crabapple
flowering crabapple
flowering crabapple
flowering crabapple
apple
dwarf apple
columnar apple
columnar apple
dwarf apple
Sargent crabapple
Sargent crabapple
flowering crabapple
crabapple
flowering crabapple
flowering crabapple
flowering crabapple
redbud crabapple
apple mint
may-apple
may-apple
may-apple
dwarf apricot
dwarf apricot
apricot
apricot
almond
dwarf flowering almond
Manchurian apricot
Japanese apricot
Japanese apricot
Japanese apricot
flowering almond
flowering almond
dappled willow
pineapple sage
pineapple sage
Malaysian apple
tropical almond
atlas broom
Royal Raindrops crabapple
European crabapple
pineapple weed
Sweet Almond Bush
Cashew Nut
Pineapple
Smooth-barked apple
Pond Apple
Mountain Soursop
Custard Apple (Chirimoya - Cuba)
Golden Sugar Apple
Sugar Apple
Pineapple Broom
Pawpaw
Swallow-Wort
Cocky apple
Seven-year Apple
Dwarf Apple Blossom Tree
Apple Blossom Tree
Apple Blossom Tree
Pink Shower Tree
Palmilla
Night Blooming Cereus
Caimito
Burmese Almondwood
Copey
Desert Thorn Apple
Thorn Apple
Thorn Apple
Jimsonweed
Pineapple Orchid
Elephant Apple
Katmon
Velvet Apple
Gold Apple
Kei Apple
Tropical Apricot
Argyle Apple
Pineapple Lily
Pineapple Lily
Pineapple Lily
Feijoa
Seven Year Apple
Urus mane
Urus mane
Pineapple Zamia
Sunsapote
Wood Apple
Osage Orange
Apple
Low Chill Apple
Mammee Apple
Pomme Jacquot
Balsam Apple
Bitter Melon
Mouse's Pineapple
Sweet Calabash
Bell Apple
Apple Leaf
Cocky Apple
Monkey Apple
Cinnamon Apple
Broadleaved Lucuma
Apricot
Almond
Wild Almond tree
Pineapple Sage
Pineapple Cactus
Cockroach berry
Kangaroo Apple
Tropical Soda Apple
Cork Tree
Gedabu
Desert Globemallow
Peon
Water Cherry
Sea Apple
Rose apple
Malay Apple
Wild Rose Apple
Wax jamboo
Red Bush Apple
Adam's Apple
Eve's Apple
Apricot Tecoma
Philippine Almond
Tropical Almond
Madagascar Almond
Wild Custard Apple
Elephant Apple
Apple
Water Apple
White Apple
Pineapple Guava
FAQ
Do shade growing plants need any Sunlight?
Shade growing plants do need sunlight, although they require less than other plants. They need some direct sunlight each morning to help them photosynthesize and grow properly. Also, indirect sunlight throughout the day helps them stay healthy. Shade growing plants will benefit from the sunshine, but if they get too much or too little, then they can suffer the consequences. It's important to pay attention to the needs of your plants so that you can provide them with the proper light for optimal growth.
How often should you water indoor plants?
Indoor plants should be watered when the soil feels dry to a depth of about two inches, usually about once a week. A helpful technique to determine your plants' watering needs is to feel the soil before and after watering to get a sense of how long it takes to dry out. An important note to remember is that some plants require less water than others, and it's best to research the specific needs of your individual plants. Likewise, if your home is very dry, you might need to water more often as the lack of moisture can stress the plants and lead to problems like brown leaves and wilted stems.
Can my monstera plant get root rot?
Yes, a plant can get root rot. Root rot is a fungal disease that can be caused by over-watering, poor soil drainage, or high humidity levels in the air. Signs of root rot include yellowing leaves, wilting and stunted growth, and damaged or browning root systems. Sometimes it is difficult to detect root rot until the plant is removed from the soil, as the problems are mainly below the soil surface. Treating root rot usually involves removing the affected parts of the plant and replanting the unaffected ones.
Can I put my Monstera outside in summer?
No, you should not put your Monstera outside in summer. Monstera plants need warm, humid air to thrive, and direct sunlight can scorch their leaves. Instead, put your Monstera in a bright, sunny spot with indirect light, making sure the sun never directly hits the leaves. During the summer, keep your Monstera's soil damp and mist it occasionally to keep the leaves hydrated. At nighttime, keep the temperature around 16 - 21°C (60 - 70°F). You can definitely take your Monstera outdoors for short periods of time, just make sure to bring it back in if it starts to get too hot.
What happens if my monstera plant gets too cold?
If your monstera plant gets too cold, it will become vulnerable to pests, disease, or other damage. Cold temperatures can damage the leaves of the plant, causing them to become spotted or limp. The roots of monstera plants may also suffer in cold temperatures, leading to root rot or other diseases. Belonging to the tropical family, monsteras are used to warm environments and do not do well in cold temperatures, so it is important to ensure your plant is kept in conditions that suit their needs.
Is it possible to grow a vegetable garden in a small space?
Yes, it is possible to grow a vegetable garden in a small space. Gardening in a small space can be as simple as growing a few containerized plants in pots and raised beds, or as elaborate as vertically stacking planters, hanging pouches, and hanging baskets on a wall, railing, or fence. Regardless of the size of the space you are working with, some simple techniques such as companion planting, organic fertilizers, and water conservation can help you get the most out of your small vegetable garden.
Is peppermint herb green good for digestion?
Peppermint herb is indeed beneficial for digestion. The flavonoids in the herb support digestion by reducing inflammation in the digestive track, aiding in digestion and relieving indigestion, heartburn, and even the symptoms of irritable bowel syndrome. Additionally, peppermint is naturally rich in menthol, which helps to relax the muscles of the stomach, aiding in the digestion of food. Peppermint herb can be consumed in a variety of forms, such as teas, tinctures and capsules, as well as by adding the herb to food or directly to water or tea.
Should peppermint herb green be consumed daily?
No, peppermint herb green should not be consumed daily. This is because it contains high levels of menthol, which can be toxic if taken in large doses. Additionally, consuming large amounts of peppermint herb green could interfere with the absorption of essential minerals and vitamins, potentially causing vitamin deficiencies. For these reasons, it is best to consult with a doctor before incorporating peppermint herb green into your daily diet.
