The farmers of the watermelon are aware that the white powder and aphid control hidden in the hands of the old melons have saved money. They can't learn it for thousands of dollars。
A lot of old watermelon guys stepped on this pit。
In the beginning, the leaves appeared on their backs with little white dots, and when the sheds were covered with white flour, the yellow rolls of leaves were frozen when the watermelons grew big。
It cost you thousands of dollars to take out the medicine, to get the pesticide residue, to miss the gold period on the market, to make a one-year payoff。
Even worse, you've been using that medicine for years, and the fungus' resistance has already started, and all the expensive drugs in the back are like water。
To put it simply, planting a melon against disease is always more preventive than cure, and today's set of formulas, ranging from a few dollars of earthly solutions to all the specialized drugs, saves you at least thousands of dollars on pesticides。
The first is preventive protection, which is almost negligible at a low cost。
It's only a few bucks to get the bottom of the seeding period, and it's too late to see the disease。
It is then followed by targeted treatment in the early stages of the disease, with phenylether acetate added to the powdered corrosion, which has a strong internal ingestion effect, with a flowering fruit and then with esters, leaves and larvae, and no more cases of pelts。
A combination of ethyl ether aerobics or ethylene sulfate with microbacterial agents is considered to have a long safe and effective life。
A few white-pointed leaves have just been found, taken off at the first hour and thrown out of the shed, not to remain on the ground as a source of infection, sprayed with tricetone and memamine, and killed together with other fungus, each time a drug is replaced with a different ingredient, no more resistant bacteria are produced。
Some old melons have spent more than a decade on chemical pesticides, and environmental protection costs little。
The first was a little soda, a small spoon of a pound of soda, two drops of detergent water to increase investment, which was sprayed back and forth in the morning after the dew had dried up, and sprayed three times a day, three times a time, and the powder disease was simply dying。
Small soda is alkaline and directly destroys the living environment of the powdery bacteria, and is grown without pesticide residues。
The second, when there is dew in the morning, spreads dry grass ash over the back of the leaves, and the ash is placed directly on the fungus to block its gas hole, and by adding potassium fat to the watermelon and pouring it out once after the rain, even with a few more cheap pesticides。
There are also households that use white vinegar, 100 ml of white vinegar to 30 kg of clean water, sundays between 9 and 11 a. M. Or leaves sprayed back after 4 p. M., once for 7 to 10 days and twice or three times。
The acidic environment directly inhibits fungi spores and encourages chlorophyll to grow and leaves to grow green and bright。
After pollen, say all the aphids with headaches。
It's all wrapped up on the back of the leaf, and it's rolled into a barrel in less than two days, and the seedlings stop growing, and you come out the next day after you've taken the medicine, and you're growing faster than you think。
You don't buy expensive aphids, you grab a dry pepper and some garlic, you seal it in the water for 24 hours, you filter the slag down to the water five times, you spray the leaves in the evening, you see it the next day, it's a half short and they don't fall。
If you don't want to make a move, buy a cedar, hang 20 centimetres an acre, hang 20 centimetres above a melon seed. Aphids are born with no resistance to yellow, fly up there and stick directly, change regularly, and do not have to beat half the physical insect。
Finally, we'll give you a few little details of the management, half of the pests and diseases。
Don't try to get a little more air, get a little air, get a little light, and the bugs like to collide。
Water is pouring out of the water, water is glamorous but afraid of flooding, dripping or ditches are the best, and the water is drained out of the water at the first hour of the rain, and the most vulnerable to outbreaks of disease is wet。
Don't spread nitrogen fat all over the ground. The seedlings are the prettiest insects, they're more organic, they catch up with compound fat, they're strong and they don't bite。
In the same area, watermelons are grown year after year, in two, three years, with corn and wheat, cutting off the life cycle of pests and pests。
Every morning, two laps were turned down, two leaves were turned over, white dots were seen and aphids were dealt with directly, and it was too late to wait for the cry to spread。
It's easier to grow an eco-plant, to plant flowers and grass around the melon land, to attract seven starworms to the house. A ladybug can eat hundreds of aphids a day, raise a bunch of them, and you don't even have to buy aphid。
After all these years of growing watermelon, did you wait for the disease to explode? If more than 5,000 is spent a year on pesticides, the comment area raises its hand。
