What is the damage of stem borer?
Stem borers cause severe damage on plant stems particularly the destruction of the central leaves (dead-heart) and the drying of the panicle (white head). Their attack leads to significant yield losses.
What is the scientific name of white stem borer?
Studies on some control measures for white stem borer, Scirpophaga innotata (Wlk) (Lepidoptera: Pyralidae).
How do you prevent stem borers?
Crop rotation is the key to get rid of stem borers. Avoid planting cucurbits in the same plot, or plant cucumbers, melons or watermelons as borers hardly threaten them. Lastly, you can cut off the infected vine and cover it with additional soil for new root growth.
Are insecticides to control stem borer?
In 2010, six pesticides – deltamethrin, cygon, chlorpyrifos, cartap, fipronil, and esfenvalerate – gave >90% control of stem-borers, and reduced damage to less than 5.0%. In 2011, control exceeding 90% and a damage level of <5.0% and was achieved with 0.35 kg/ha deltamethrin and chlorpyrifos.
What is Fipronil made of?
Fipronil is a broad-spectrum phenylpyrazole insecticide. The International Union of Pure and Applied Chemistry (IUPAC) name for fipronil is (±)-5-amino-1-(2,6-dichloro-α,α,α-trifluoro-p-tolyl)- 4-trifluoromethylsulfinylpyrazole-3-carbonitrile.
Are there squash vine borers in California?
The squash vine borer is native to North America. It lives in most temperate North American states, except the Pacific coast.
Is fipronil banned in the US?
For example, the US EPA banned fipronil seed treatments for corn (maize), and Europe banned fipronil in agriculture. The future uses of fipronil are yet to be determined.
Where can I find squash vine borer?
Identifying Squash Vine Borer Damage Look for holes at the base of the plant and green or orange-yellow sawdust-like “frass,” which is the chewed up stem that the larvae produces as it burrows into the plant. Squash vine borer larvae feed on the material inside the stems of the plants.
What is the white stem borer of rice?
Photo 1. Adult rice white stem borer, Scirpophaga innotata. Photo 2. Adult rice white stem borer, Scirpophaga innotata. Photo 3. Damage (‘deadheart’) to rice stem by Chilo auricilius (damage to Scirpophaga innotata is similar).
What is a stemborer?
A stemborer (stem borer) is any insect larva, or arthropod, that bores into plant stems.
What are the different types of stemborer attack rice?
Six species of stemborer attack rice. These are the yellow stemborer, white stemborer, striped stemborer, gold-fringed stemborer, dark-headed striped stemborer, and the pink stemborer. Among the stem borers, the pink stem borer is less important. It is polyphagous and prefers sugarcane to rice.
Why and where does the stem borer occur?
Why and where it occurs. The stem borer larvae bore at the base of the plants during the vegetative stage. On older plants, they bore through the upper nodes and feed toward the base. The yellow stem borer is a pest of deepwater rice. It is found in aquatic environments where there is continuous flooding.