Yellowing of the lawn to death? Incomplete blades? In the hot summer, in addition to the invasion of germs, there are often various insect pests that take advantage of the opportunity, and the common pests in the lawn are mainly underground pests and leaf-eating pests!
Lawn lumps dead? Beware of underground hazards!
Pay attention to observation in the daily maintenance of the lawn, if there is a small piece of death, you can observe whether there are underground pests such as grubs and slugs in the soil part.
1. Grub hazard: Grubs can directly bite off the roots and stems of seedlings, causing seedlings to die. After harming the seedlings, the soil around the affected seedlings is loose but not uplifted, and the roots of the seedlings are bitten off or the root bark is bitten, causing the seedlings to wither and die, but rarely lodging.
2. Ground tiger: Ground tiger eats the base of the young stem near the ground, bites off or bites the seedling.
3. Caddisflies: Bite into freshly sown seeds in the soil, especially newly germinated seeds. After the slugs harm the seedlings, near the roots, the soil is often uplifted, and the seedlings wither and fall.
4. Golden needle worm: after harming the seedlings, there are wormholes drilled at the base of the main root or young stem of the seedlings, and the seedlings gradually wither or grow poorly.
Lawn blades are incomplete? Leaf-eating pests are in harm!
In addition to underground pests, there is also a class of leaf-eating pests in the lawn that mainly feed on the leaves of the lawn with larvae, often biting into a gap or leaving only the leaf veins, or even eating them all.
1, light sword night moth: mainly endanger the grassland early maturing grass, high fescue, ryegrass and other grasses cold season lawn, with larvae to eat plant leaves, after hatching that is, in the vicinity of feeding, 5 to 6 years old for the binge eating period, the leaf veins and young stems eat out, May to October have this insect hazard.
2. Grassland borer: the early larvae eat the mesophyll tissue, residual epidermis or veins, and can eat the leaves after 3 years, and the harm period is 6-9 months.
3. Twill nocturnal moth: adults lay their eggs on the back of the leaves, the larvae concentrate on the leaf back to eat the leaf flesh in the early stage of hatching, eat separately and nibble on the whole leaf after 3 years, and enter the binge eating period after 4 years, the main harm period is 6-10 months, and the most serious is 7-9 months.
4. Armyworm: 1-2 year old larvae only eat leaf flesh, form small holes, form a lack of moments after 3 years, 5-6 years old is the binge eating period, when severe, the leaves can be eaten, and even eat the whole lawn. Overwintering larvae begin to feed on plants from early spring, pupating into adults from April to May, and harming until autumn.
Integrated solutions for lawn pests:
1. Underground pest control:
Qilindi insect --- sprinkled to control underground pests, and the effective period is up to 6-8 months.
Qilin Huoji --- spraying to control underground pests, high efficiency and low toxicity, dead insects can be seen!
Resistant grub solution: When the pest occurs severely, use idle tillage granules of 6-8 kg per mu, mix 15-20 kg of Qilin Peitian, evenly sprinkle and water.
2. Leaf-eating pest control:
Qilin Guangzheng --- has the dual effects of touch killing and gastric toxicity, and adopts microcapsular suspension technology, with an effective period of up to 60 days.
Qilin Qifa --- low toxicity, broad spectrum, high efficiency insecticide, super strong touch killing, gastric toxicity and fumigation effect, insecticidal rapid and thorough.
Qilin Royal Moth --- biological agent, pest resistance, insecticidal effect is remarkable.
Solution for resistant pest twill moths: When severe, use Guangcan 1500 times liquid or Guangtai 500 times liquid to spray evenly after the 3rd instar stage of the larvae.