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How can flower black spot be prevented and controlled effectively?
How is flower black spot prevented and controlled effectively?
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Exposing the world's highest dioxin contamination, Huang Huanzhang has pursued environmental poisoning for 26 years, never compromising in the fight against black and white
Exposing the world's highest dioxin contamination, Huang Huanzhang has pursued environmental poisoning for 26 years, never compromising in the fight against black and white
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What are the prevention and control methods for black spots on orchid leaves?
How to prevent and control black spots on orchid leaves
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Black soil grows good rice, red soil grows tea: Chen Zunxian spent 42 years researching and selecting a county soil for every county in Taiwan, China
Soil decides everything! The black soil of Hualien-Taitung grows good rice, red soil grows tea; Chen Zunxian spent 42 years researching and selected a "county soil" for every county in Taiwan, China
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How to Pick a Delicious Guava? A Full Breakdown of Ten Things, from Choosing One That Tastes Good to Why It Doesn't Turn Black After Cutting
How Do You Choose a Delicious Guava? Why Doesn't It Turn Black After Cutting? Ten Questions to See How Well You Really Know Guava
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Solar panels appear in black-faced spoonbill habitat: Chenglong Wetland's decades-long vision for a conservation village faces challenges
Solar power closes in on Chenglong Wetland 01"Solar panels appear in black-faced spoonbill habitat; after more than a decade of striving for wetland conservation, the village's vision is challenged
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How to prevent and treat black spot disease in orchids? These methods you need to know
What to do when an orchid gets black spot disease?
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How to prevent and treat black spots on orchid leaves?
How to prevent and treat black spots on orchid leaves?
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What is the difference between black jujube and red jujube? A full analysis of the differences in their effects
What are the differences between black jujube and red jujube, and how do their effects differ? Black jujube and red jujube are both common food products on the market, but because the two are similar in appearance and taste, many people cannot tell them apart. In fact, black jujube and red jujube still have many differences. Below
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Symptom Identification and Control Methods of Walnut Bacterial Blight
1. Distribution and Occurrence Characteristics Widely distributed in walnut-producing areas such as Hebei, Shandong, Shanxi, Liaoning, Henan, Jiangsu, Zhejiang, Sichuan, Yunnan, Shanxi, and Gansu, with severe incidence in some areas. Infection generally begins in mid-to-late May. The pathogenic bacteria overwinter in the lesions of diseased branch tips or in diseased buds. In the spring of the following year, the bacteria spread by wind and rain splashing onto leaves, fruits, and young branches, causing damage. The pathogen can infect floral organs, so pollen can also carry the bacteria, and insects are also vectors. The bacteria invade through stomata, lenticels, nectaries, and various wounds. Under conditions of sufficient humidity, temperatures within the range of 4-30°C can cause infection of leaves, and 5-27°C can cause infection of fruits. The incubation period varies in different parts: 5-34 days on fruits and 8-18 days on leaves.
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