Causes of Button Mushroom Dieback and Control Methods

Button mushroom cultivation is fairly common in China, and cultivation techniques are constantly developing now; both greenhouse and factory cultivation achieve relatively high yields. The economic benefits of button mushrooms are good; they not only have high nutritional value, but also have the advantages of a short growth cycle and easy management. For growers, the thing they fear most is the appearance of various diseases or dieback in button mushrooms. Below, let us take a look at what are the causes of button mushroom dieback and the control methods?

I. Causes of button mushroom dieback

Many growers report that dieback often occurs when growing button mushrooms, so what causes it? Generally, factors such as sustained high-temperature weather, long-term nutrient deficiency, poor ventilation conditions, incorrect watering methods, unsuitable soil pH, aging mycelium, excessively dense fruiting with the fruiting position too high, pest and disease attack, and indiscriminate use of pesticides can all lead to button mushroom dieback.

II. What are the control methods for button mushroom dieback?

1. Choose excellent spawn

Seed selection is a key point in growing button mushrooms, because only spawn with good mycelial growth capacity has a relatively high possibility of achieving high yields once planted. The spawn culture medium must have sufficient nutrients; pay attention to sanitation in the culture room and keep the indoor air fresh. During the spawn cultivation period, observe the temperature inside the button mushroom shed at all times, and be sure to let it grow at a suitable temperature. If inferior or poorly growing spawn is found, it must be dealt with promptly.

2. The compost must be applied in sufficient amount

In the button mushroom production process, there must be sufficient nutrients so that button mushrooms can grow normally and achieve high yield and high quality. If button mushrooms lack nutrients for a long time, dieback is very likely to occur, so it is very critical when preparing the culture; the work of composting and fermenting the compost must be done carefully, as this is more conducive to reducing the occurrence of button mushroom dieback caused by insufficient nutrients.

3. Master the correct planting time

Button mushrooms are grown fairly widely in China, so each region should decide the planting time for button mushrooms according to local climate and geographical conditions. In the central and southern parts of North China, for example, material preparation generally starts in August, and sowing is carried out in September. If button mushrooms are planted too early or too late, dieback may occur.

4. Do a good job of ventilation in the mushroom shed

Button mushroom growth must maintain sufficient oxygen; if the indoor carbon dioxide is too concentrated, the fruiting bodies of button mushrooms cannot grow normally. The main reason is that the ventilation conditions in the mushroom shed are poor and the carbon dioxide is too concentrated, resulting in dieback.

5. Correct water use

Water use for button mushrooms must be determined according to factors such as climate and fruiting amount. If there is long-term rainy weather, spray a little less water; if it is summer with high temperatures, spray a little more water.

In summary, button mushroom dieback is fairly common, and growers can refer to the above measures to do a good job of prevention.