What are the prevention and control methods of sycamore diseases and insect pests?
The prevention and control methods of sycamore diseases and insect pests are as follows: first, remove and burn the fallen leaves, and spray Bordeaux liquid or chlorothalonil during the disease period. Second, spraying soap and petroleum emulsion in early spring to kill sycamore planthopper. Third, kill longicorn beetle adults artificially, and inject fenitrothion and dichlorvos in the tunnel. Fourth, other pests nymph stage or larval stage, spray dimethoate, dichlorvos, trichlorfon and other agents.
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The method of sowing and raising seedlings of sycamore in spring
Indus is a deciduous tree of the genus Indus of the family Indus with straight ends and green bark. It is an excellent street tree species and has been widely used in urban and rural greening in recent years. Through several years of practice, the author has explored a set of techniques for raising seedlings by spring sowing of sycamore, which is introduced as follows: the sowing time can be carried out in Beijing Plain from late March to early April after soil thawing in spring. The soil is prepared to turn the soil 30 cm deep before sowing, remove weeds, roots and other sundries, and then do ridges or bed and soil disinfection to do ridges and bed sycamore seedlings should be raised in high beds and wide ridges.
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How to distinguish between Fatong, sycamore and paulownia
In the construction of urban greening and beautification, it is an important work to identify and plant tree species. The three tree species, Fatong, paulownia and sycamore, look like the three sisters in urban landscaping. In fact, these three tree species are different families and genera, and there are also great differences in shape. Fatong is a large deciduous tree of the genus Platanus of the family Platanus. Fatong is called Fatong because its leaves are like sycamore, which was introduced from abroad in old China and planted in the French concession in Shanghai. Fatong is actually three-ball Platanus and two-ball Platanus.
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