Common pesticides in pomegranate trees

Pomegranate is delicious, nutritious and the market price is good, so growers who want to make money plant pomegranate trees. During the planting period, they may need to use pesticides. So, what pesticides are commonly used in pomegranate trees?

If pomegranate trees do not have diseases and insect pests, they do not need to use pesticides. However, pomegranate trees may suffer from diseases such as coal fouling, dry rot (white rot), brown spot, black pox, anthrax, and pests such as peach borer, diamondback moth, aphids, bugs, shell insects, and Spodoptera litura. We can use corresponding pesticides to control them.

1. Coal pollution disease

Symptoms: the harmful objects are leaves and fruits. In the early stage of the disease, there will be an obvious layer of black unknown substance on the leaf surface, but this layer of unknown substance can be easily erased by hand, and a layer of substance similar to bituminous coal is glued to the leaf, making it impossible for the leaf to carry out photosynthesis. The main transmission is due to the insects carrying the virus to stay on the leaves, leaving feces and so on, and poor permeability, high temperature and humidity on the fruit trees have a higher incidence. The disease of fruit is similar to that of leaves.

Prevention and treatment: when the disease is serious, imidazole wettable powder and other agents are sprayed to the affected site, once every 9-11 days for about a month.

2. White rot

Symptoms: mainly harmful to flowers, pedicels and fruits. The pedicel and receptacle were infected with brown depression, and the seriously diseased flowers fell off early. The infected part of the fruit became grayish black, soft, gradually lost water and dried up, and in the later stage there were dense black grains on it, that is, the conidium of the pathogen.

Prevention and treatment: during the onset period, 47% Jiarinong wettable powder 700 times solution, 50% methyl thiophanate wettable powder 700 times solution, 25% carbendazim cyclohexyl zinc EC 800 times, once every 10-15 days, 3-4 times.

3. Brown spot

Symptoms: mainly damage to leaves and fruits, causing early fruit drop and late leaf drop. After the injury of the leaf, it was brown at first, nearly round after expansion, black to black-brown at the edge, slightly convex, gray-black spot in the middle, and the symptoms on the back of the leaf were the same as those on the front. The disease spot on the fruit is nearly round or irregular, black is slightly sunken, and there are also gray fluffy particles. The outer edge of the disease spot is yellowish white after fruit coloring.

Prevention and treatment: from mid-March to early April, 10% difenoconazole water dispersible granules were sprayed 1500 times for 2-3 times. The following pesticides are used after late May: 8000 times of Foxing (flusilazole) EC, 5000 times of 25% propiconazole EC, 5000 times of 30% phenylether methyl propionazole EC, or 2000 times of 25% nitrilazole EC. Or 40% carbendan wet powder 500 times 600 times, or 50% carbendan 600 times 800 times, choose one, spray once in 7-10 days, can spray 2-3 times in a row.

4. Insect pests

For aphids, 33% chlorinated EC and 2.5% aphid wettable powder can be used to control aphids. For peach borer, 50% phoxim EC can be used to control it. For diamondback moth and aphids, it can be used to kill and kill permethrin. For scale insects, methophos and chlorpyrifos can be used to control.