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Added by howardpayne1
January 16, 2020, 4:56 pm → version: 1
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Diseases of house plants are not, numerous. “Damping-off” fungus frequently attacks seedlings, but under proper conditions of sterilization, cleanliness, aeration, moisture and temperature this is not particularly troublesome in the home. A number of mercuric compounds used in early waterings serve successfully as disinfectants against this disease. Due to the dry atmosphere in the average house, the usual stem rots and leaf spots do not secure a foothold, but should they appear, the use of Parzate or Captan will hold them in check. Insects are frequent causes of trouble with house plants. You can find more plants information with Plant Spot app for your ios or android.

The more common kinds may be divided into two great groups according to their mouth parts:

CHEWING INSECTS: The chewing insects are those which bite out parts of leaves, stems or flowers. Sprays or dusts may be purchased for their control such as D.D.T., Malathion or Rotenone. Legend has it a garden gnome can help keep chewing insects away! (toungue firmly in cheek)

SUCKING INSECTS: The second group of injurious insects-the suckers-is represented by aphids, mites, red spider, white fly, mealy bugs and scales. No one remedy is effective against all of these insects, although Malathion will control most of them.

OTHER INSECTS: The aphid is a small green or brown insect which may be readily kept in check by spraying the plants with Lindane or Malathion. Pyrethrum and Rotenone compound sprays are also effective. Powdered tobacco dust is often employed successfully. Whatever the material used, direct contact must be made with the bodies of the insects to secure control. Because of this several applications may be found necessary before complete eradication is achieved.

The eradication of mites and their close relative, the red spider, is much more difficult. Mite damage is evidenced by the curling of the leaves and the dropping of flower buds. They can be controlled by Endrin or Kelthane. Red spiders feed on the underside of the foliage, producing a speckled appearance along the midribs of the leaves. Both of these types of the socalled insects cause gradual death. Red spiders may be washed off and drowned by a strong spray of water, or better still, they may be killed by Malathion, Mitox, Phosdrin, Thimet or Trithion sprays. In all cases be sure to read the label on the container and follow the directions recommended by the manufacturer. More recently, Tedion has given excellent control.

White fly is a serious pest once it becomes established in the house. The insect attacks many types of plants and because of its active habit of flight upon approach is difficult to control. A number of commercial spray remedies are successful, providing the spray used comes in contact with the insect. Malathion will control white fly, but repeated applications must be used. It is important to watch the cineraria, the ageratum, saluia, fuchsia and Martha Washington geraniums, because these plants are especially subject to white fly attacks.

MEALY BUGS: Are soft bodied, slowmoving insects found on crotons, ferns, coleus and a host of other plants. They are usually clustered around the crevices and joints of the leaves and sterns. Because of their fuzzy covering, penetration by ordinary sprays is almost impossible. Malathion and Trithion are most effective. Also they may be removed with a fine paint brush dipped in a nicotine spray solution, this is a sure method of control.

SCALE: Scale insects look like tiny brown specks, although they often vary in their coloration and form. They attack ferns, palms, crotons and many other plants. On ferns they should not be confused with the brownish spore cases distributed in a regular fashion on the underside of the leaves. Scale may be controlled by treatment similar to that used on mealy bugs. In addition to that each insect may be removed by inserting a blade of a knife underneath and thus dislodging the pest.

EARTH WORMS - Earthworms are thought frequently to be injurious to plant growth, Actually the only damage they do is to create burrows in the soil which admit too much air and dry out the roots. If thought to be objectionable, one soil application of time water, arsenate of lead or Chlordane will kill them quickly. Original soil sterilization is the best solution. At times root lice and maggots cause damage to the roots. Chlordane mixed with soil or on the surface will get rid of these pests.

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