Flower banned or used with caution

Due to the different types of flowers, differences in growth and development stages often cause some common flowers to cause phytotoxicity when using pesticides. Light plants have fallen leaves, fallen flowers, and fallen fruits. In serious cases, plant death results in great losses. Therefore, the correct selection of pesticides is particularly important for ornamental plants that are sensitive to pesticides. The following describes the phytotoxicity caused by common pesticides.

Dimethoate, omethoate: Kiwifruit is particularly sensitive and hanged; it can produce obvious phytotoxicity to plum blossoms, cherry blossoms, flower peaches, prunus triloba, paste stems jellyfish, apricots, pears and other Rosaceae ornamental plants; dimethoate Even though the use of dimethoate sprays in June-October, it often causes the petals to fall and the leaves, inflorescences, and branchlets fall off and lose their ornamental value; in addition, dimethoate Melons also have a certain influence. Therefore, the above ornamental plants should not use dimethoate and omethoate.

Dichlorvos: Dichlorvos have obvious phytotoxicity on ornamentals such as plum blossoms, cherries, peaches, apricots, prunus triloba, 20th century pears, and Beijing white pears. Usually, other types of insecticides should be used instead. Dichlorvos also have varying degrees of phytotoxicity to Rhododendron, Bunting willow, Kiwifruit, Scorpion, Walnut, and melons. When using pesticides to control the pests of these plants, care should be taken to avoid unnecessary losses.

Trichlorfon: It has phytotoxic effects on cherry blossoms, plum blossoms, and other varieties of apples.

Lime-sulfur mixture: Lime-sulfur mixture is harmful to peaches, plums, plums, pears and other Rosaceae plants. If lime sulfur is used on these plants, it is best to spray in the deciduous season. Do not use it in the growing season or the flower and fruit period. The lime sulfur mixture has certain phytotoxicity on kiwi, grapes, cucumber and leguminous flowers.

Bordeaux mixture: It is sensitive to peaches and plums in the growing season; when it is less than the amount, pears, apricots, and persimmons are prone to phytotoxicity. When it is higher than the accompaniment dose, the grapes are prone to phytotoxicity.

Songzhi Mixture: The use of pine oil mixture in the summer has obvious damage to the persimmon, and the spring and summer season have adverse effects on the orange.

Topozone: Topiramate should be avoided when controlling kiwifruit pests and diseases.

Oil emulsion: It is easy to produce phytotoxicity on some peach species, and it is best to use it in the deciduous season.

In order to prevent pesticides from causing harm to many ornamental plants, one purpose is to use other pesticides that are highly efficient and non-harmful; second is to minimize the use of concentrations; third is not to spray under high temperature and high humidity conditions; in order to avoid losses, Also pay attention to the rational use of pesticides.

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