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Posted on 6:59 PM by Wanto and filed under
By Carl Roessler
Bees and mice can be classified as pests cause they take pollen from the flowers, rendering them useless, for throughout their pollen intact the flowers to die within one or two days. This is particularly disheartening to the rower when it concerns flowers that are expected to last for several weeks.
The bees will enter a greenhouse from outside, removing pollen as they leave the flowers where they have searched unsuccessfully for nectar. Prevent bees from entering your greenhouse by covering the ventilator space with a fine-gauge netting. Remember to do the same to the doorway if this is left open during hot weather. Mice find orchid pollen particularly attractive as a good source of food. If you suspect you have mice, which will come in from outside as the weather gets cold in winter, lay humane traps and be sure to release them well away from the greenhouse.
Mealy bugs insects are larger than aphids and therefore more easily seen. They measure about 3mm long. They have soft, pink bodies and cover themselves in a white, cottonwool like substance, which gives a clear indication of their presence. They tend to congregate at the base of leaves and in axils on dendrobiums, among others.
The damage caused is similar to that done by scale insects, showing up as ugly yellow patches where they settle. Treat this pest in the same way as scale insects.
Scale insects can take on a variety of forms, all adults cover themselves with a scale like shell, which may be soft or hard. white or brown, and usually round or oval-shaped. There is also a woolly scale which looks similar in appearance to mealy bug but spreads itself more widely over a leaf surface. When eggs hatch, the larval stage is extremely small and relatively fast-moving.
Watering the plant with a solution of insecticidal soap or BT (Bacillus thuringiensis) will kill the grubs. Weevils are a common outdoor pest of gardens and will find their way into the greenhouse and home. They may also be brought in on other plants, and should be constantly watched for.
Once a colony has become established, it can breed rapidly into large numbers during the summer. The problem is eliminated by breaking the breeding cycle. To do this, stand the affected plant in a bucket of water so that the water level reaches the rim of the pot in order to drown the grubs.
You can leave it there for half an hour without harming the plant. To control the adult flies, particularly with windowsill orchids, place a few insectivorous plants, such as butterworts (Pinquicula spp) and sundews (Drosera spp), close to the orchids. These are bog plants and so need to stand in shallow dishes of water at all times. No fertilizer should be used, because this will kill them. Their sticky leaves will catch any moss flies and small midges, making this is an efficient and natural method of control.
The bees will enter a greenhouse from outside, removing pollen as they leave the flowers where they have searched unsuccessfully for nectar. Prevent bees from entering your greenhouse by covering the ventilator space with a fine-gauge netting. Remember to do the same to the doorway if this is left open during hot weather. Mice find orchid pollen particularly attractive as a good source of food. If you suspect you have mice, which will come in from outside as the weather gets cold in winter, lay humane traps and be sure to release them well away from the greenhouse.
Mealy bugs insects are larger than aphids and therefore more easily seen. They measure about 3mm long. They have soft, pink bodies and cover themselves in a white, cottonwool like substance, which gives a clear indication of their presence. They tend to congregate at the base of leaves and in axils on dendrobiums, among others.
The damage caused is similar to that done by scale insects, showing up as ugly yellow patches where they settle. Treat this pest in the same way as scale insects.
Scale insects can take on a variety of forms, all adults cover themselves with a scale like shell, which may be soft or hard. white or brown, and usually round or oval-shaped. There is also a woolly scale which looks similar in appearance to mealy bug but spreads itself more widely over a leaf surface. When eggs hatch, the larval stage is extremely small and relatively fast-moving.
Watering the plant with a solution of insecticidal soap or BT (Bacillus thuringiensis) will kill the grubs. Weevils are a common outdoor pest of gardens and will find their way into the greenhouse and home. They may also be brought in on other plants, and should be constantly watched for.
Once a colony has become established, it can breed rapidly into large numbers during the summer. The problem is eliminated by breaking the breeding cycle. To do this, stand the affected plant in a bucket of water so that the water level reaches the rim of the pot in order to drown the grubs.
You can leave it there for half an hour without harming the plant. To control the adult flies, particularly with windowsill orchids, place a few insectivorous plants, such as butterworts (Pinquicula spp) and sundews (Drosera spp), close to the orchids. These are bog plants and so need to stand in shallow dishes of water at all times. No fertilizer should be used, because this will kill them. Their sticky leaves will catch any moss flies and small midges, making this is an efficient and natural method of control.
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