Rice locusts infect crops.. What to do??
Characteristics of the rice locust
Cedar grasshopper or grasshopper hero glyphos (cedar grasshopper) resembles a multi-colored body. Both are light green, reddish brown, light yellow and some are black. The part below the abdomen is black all over the body. The body of an adult is 3-5 cm long, yellowish-green or yellowish-brown and dark brown in color. They reproduce once a year and lay eggs at the end of the rainy season. The eggs hatch in the soil throughout the dry season for 7-8 months, and the eggs look like jujube seeds . They hatch into larvae during April and June and become adults during August and September.
It will spread throughout the winter until the dry season (September to April) In the past, plagues were often found in grass and vetiver forests, and later, when rice, sugarcane, and maize were grown instead in those areas. Grasshoppers will infest sugarcane and corn plantations. And the locusts will continue to multiply
Grasshoppers do not hatch or hatch as caterpillars within the plot. But it lays eggs and hatches in the form of larvae at the end of the field and then spreads over the fields of crops as long as the head of the field is not expanded or plowed. Locusts will swarm every year. But if the farmer plows the land with a tractor, the locusts will be scattered and lead to disappearance from the area
Both adults and larvae eat the leaves of rice, sugarcane, or maize, causing the leaves to tear and shred. If there is too much destruction, it will eat until only the middle part remains, causing the plant to stop growing. Adults fly fast and are very strong. Damage ranges from 20-90%, especially for upland rice. Hunting plants will be badly damaged. Sometimes the crop may not be harvested at all.
Prevention and elimination
- Locusts lay their eggs in the grassy soil. Or at the edge of the land near the fields of rice, sugar cane or corn, so if the weeds are eliminated in that area and plowing destroys the locust eggs . But it must be done after ovulation from October to April.
- Use the swing to catch the larvae or adults eating the crops to catch the grasshoppers to destroy them. (if applicable)
- Spray with biological pest control agents such as Metarisium or Beauveria. Tips on adding leaf catchers and using natural enemies like flies to help with control
- If the locust infestation is severe, kill it with poison bait traps. Mix 20g of Cartab hydrochloride 50% SP, 30g of table salt, 30g of ammonium bicarbonate, leaf wrapper and 1 liter of water. Soak a sheet of 11 x 15 cm in the solution and let it air dry. Put it in the groove between the canes. Dress as concise as possible