News Item: : What should you know about diseases and pests in the flowers
(Category: Other)
Posted by gradinar
Thursday 13 November 2008 - 12:56:43
What should you know about diseases and pests of flowers!?
Fungal diseases
Sashtinka powdery mildew
· Signs: Formation of a white to mrasnokafyav pulverulent coating on top and the underside of the leaves.
· Cause: Fungal spores.
· Biological control: Potion of horsetail.
· Chemical protection: fungicides.
Fake powdery mildew
· Signs: Formation of a white to mrasnokafyav pulverulent coating on the underside of the leaves.
· Cause: Fungal spores.
· Troubleshooting: As in real powdery mildew.
Gray rot
· Signs: Formation of kafyavosin coating on the leaves, stems or flowers.
· Cause: Excessive fertilization with nitrogen fertilizer, wintering in a cool, damp place.
· Measures: Remove diseased plant parts and placing them in a dry and ventilated place. Limiting the amount and use of only nitrogen fertilizer.
· Chemical protection: fungicides.
Fungi
· Signs: Formation of bright spots on top of leaves, rusty dust accumulation on the lower side. Hair loss on the leaves.
· Causes: Fungal spores. Wintering of a wet and warm place.
· Measures: Remove affected leaves.
· Chemical protection: fungicides.
Sazhdiva Mildew
· Signs: Formation of a black coating on the leaves.
· Cause: fungi, which are formed on the honey dew from aphids.
· Measures: Remove heavily contaminated leaves, and the rest are washed with lukewarm water. Remove leaves and mealy-bug, and white flies.
Askohitoza
· Signs: Uvyahnali leaves Broken shoots, reddish spots in the leaf axis.
· Cause: Infection developed from the long rains.
· Measures: Harvesting of plants under a roof. Cut the affected parts.
· Chemical protection: fungicides.
Disabilities in the leaves
Yellow leaves
· Causes: Excessive irrigation, shortage of nitrogen and light.
· Measures: fertilization in - less watering, moving plants.
Curled leaves
· Causes: Hot spot dry tuff, damage to roots.
· Measures: Change of location, replanting in another court.
Pale leaves (chlorosis)
· Cause: Lack of iron and magnesium.
· Measures: Adding chelated iron to the water for irrigation.
Bacteria
Oleandrov cancer
· Signs: Round, surrounded by yellow spots on leaves, the crunch of the skin, damaged flowers.
· Cause: Infection
· Measures: Affected shoots are destroyed.
Pests
Mites
· Signs: cobwebs at the base of the leaves and the tops of the shoots. Byalozhaltenikavi bright spots on the upper side of leaves.
· Reason: Dry, warm and stagnant air.
· Measures: Placing the plants in a cool, shady and wet place.
· Chemical protection: Sprinkling of anti-mite.
Scale insects
· Signs: Mucilages leaves, brown vosachnopodobni shields, hiding in the lice. Hair loss on the leaves.
· Reason: winter hot spot for many
· Measures: shields to scrape, wash the leaves.
· Chemical protection: Insecticides.
Aphids
· Signs: Mucilages, deformed leaves and buds damaged tops of the shoots.
· Biological control: an extract of nettle, wormwood tea.
· Chemical protection: Insecticides.
White flies
· Signs: Presence of white insects on the underside of the leaves, which take off when touched.
· Chemical protection: Insecticides.
Trips
· Signs: silver sheets of fine dots. On the underside of the leaves were observed brownish sucked.
· Reason: wintering very warm and dry place.
· Measures: Placing the plants in a cool and humid place.
· Chemical protection: Insecticides.
Cicada on roses
· Signs: The leaves look like sprayed with beleznikavozhalto. At the bottom of the leaves have zelenikavozhalti larvae.
· Measures: Pre-spraying with paraffin oil. In the attack - using sapunopodoben ready preparation.
Mined flies
· Signs: grub stripes on the upper side of leaves.
· Measures: Remove the leaves attacked by larvae, but if the plants are affected strongly repeatedly sprayed with insecticide during the 10 - 14 days.
Debelomutsunest hobotnik
· Signs: circular fret on the edges of the leaves. Suddenly wilt.
· Measures: Collection of beetles and larvae. Irrigation with parasitic nematodes.
Leaf bugs
· Signs: deployed fan-like leaves and riddled. Deformation of colors.
· Measures: spraying with insecticide at noon when the organism is glow in the sun.
Little cat hunched worms
· Signs: Naiad destroyed bodily leaves.
· Measures: caterpillars and the affected leaves are removed
Snails
· Signs: prostargani tacky and leaves and flowers. Sluzesti traces.
· Measures: Collection of snails in the morning and evening.
Hrizomelidi
· Signs: chipped, Atlantic worm leaves.
· Measures: Collection of beetles and larvae. In severely affected plants used insecticide.
This news item is from Flower Encyclopedia
( http://en.cvetq.info/news.php?extend.151 )
(Category: Other)
Posted by gradinar
Thursday 13 November 2008 - 12:56:43
What should you know about diseases and pests of flowers!?
Fungal diseases
Sashtinka powdery mildew
· Signs: Formation of a white to mrasnokafyav pulverulent coating on top and the underside of the leaves.
· Cause: Fungal spores.
· Biological control: Potion of horsetail.
· Chemical protection: fungicides.
Fake powdery mildew
· Signs: Formation of a white to mrasnokafyav pulverulent coating on the underside of the leaves.
· Cause: Fungal spores.
· Troubleshooting: As in real powdery mildew.
Gray rot
· Signs: Formation of kafyavosin coating on the leaves, stems or flowers.
· Cause: Excessive fertilization with nitrogen fertilizer, wintering in a cool, damp place.
· Measures: Remove diseased plant parts and placing them in a dry and ventilated place. Limiting the amount and use of only nitrogen fertilizer.
· Chemical protection: fungicides.
Fungi
· Signs: Formation of bright spots on top of leaves, rusty dust accumulation on the lower side. Hair loss on the leaves.
· Causes: Fungal spores. Wintering of a wet and warm place.
· Measures: Remove affected leaves.
· Chemical protection: fungicides.
Sazhdiva Mildew
· Signs: Formation of a black coating on the leaves.
· Cause: fungi, which are formed on the honey dew from aphids.
· Measures: Remove heavily contaminated leaves, and the rest are washed with lukewarm water. Remove leaves and mealy-bug, and white flies.
Askohitoza
· Signs: Uvyahnali leaves Broken shoots, reddish spots in the leaf axis.
· Cause: Infection developed from the long rains.
· Measures: Harvesting of plants under a roof. Cut the affected parts.
· Chemical protection: fungicides.
Disabilities in the leaves
Yellow leaves
· Causes: Excessive irrigation, shortage of nitrogen and light.
· Measures: fertilization in - less watering, moving plants.
Curled leaves
· Causes: Hot spot dry tuff, damage to roots.
· Measures: Change of location, replanting in another court.
Pale leaves (chlorosis)
· Cause: Lack of iron and magnesium.
· Measures: Adding chelated iron to the water for irrigation.
Bacteria
Oleandrov cancer
· Signs: Round, surrounded by yellow spots on leaves, the crunch of the skin, damaged flowers.
· Cause: Infection
· Measures: Affected shoots are destroyed.
Pests
Mites
· Signs: cobwebs at the base of the leaves and the tops of the shoots. Byalozhaltenikavi bright spots on the upper side of leaves.
· Reason: Dry, warm and stagnant air.
· Measures: Placing the plants in a cool, shady and wet place.
· Chemical protection: Sprinkling of anti-mite.
Scale insects
· Signs: Mucilages leaves, brown vosachnopodobni shields, hiding in the lice. Hair loss on the leaves.
· Reason: winter hot spot for many
· Measures: shields to scrape, wash the leaves.
· Chemical protection: Insecticides.
Aphids
· Signs: Mucilages, deformed leaves and buds damaged tops of the shoots.
· Biological control: an extract of nettle, wormwood tea.
· Chemical protection: Insecticides.
White flies
· Signs: Presence of white insects on the underside of the leaves, which take off when touched.
· Chemical protection: Insecticides.
Trips
· Signs: silver sheets of fine dots. On the underside of the leaves were observed brownish sucked.
· Reason: wintering very warm and dry place.
· Measures: Placing the plants in a cool and humid place.
· Chemical protection: Insecticides.
Cicada on roses
· Signs: The leaves look like sprayed with beleznikavozhalto. At the bottom of the leaves have zelenikavozhalti larvae.
· Measures: Pre-spraying with paraffin oil. In the attack - using sapunopodoben ready preparation.
Mined flies
· Signs: grub stripes on the upper side of leaves.
· Measures: Remove the leaves attacked by larvae, but if the plants are affected strongly repeatedly sprayed with insecticide during the 10 - 14 days.
Debelomutsunest hobotnik
· Signs: circular fret on the edges of the leaves. Suddenly wilt.
· Measures: Collection of beetles and larvae. Irrigation with parasitic nematodes.
Leaf bugs
· Signs: deployed fan-like leaves and riddled. Deformation of colors.
· Measures: spraying with insecticide at noon when the organism is glow in the sun.
Little cat hunched worms
· Signs: Naiad destroyed bodily leaves.
· Measures: caterpillars and the affected leaves are removed
Snails
· Signs: prostargani tacky and leaves and flowers. Sluzesti traces.
· Measures: Collection of snails in the morning and evening.
Hrizomelidi
· Signs: chipped, Atlantic worm leaves.
· Measures: Collection of beetles and larvae. In severely affected plants used insecticide.
This news item is from Flower Encyclopedia
( http://en.cvetq.info/news.php?extend.151 )