Table of Contents
What is the life cycle of stem borer?
Stem borers have four lifecycle stages: eggs, caterpillars, pupae and moths. Female moths lay their eggs on both sides of the host plant’s leaves. The eggs hatch into caterpillars after 4-7 days.
What is scientific name of mango stem borer?
Mango tree borer, Batocera rufomaculata Coleoptera: Cerambycidae.
How do you get rid of white stem borers?
How to manage
- Use resistant varieties.
- At seedbed and transplanting, handpick and destroy egg masses.
- Raise level of irrigation water periodically to submerge the eggs deposited on the lower parts of the plant.
- Before transplanting, cut the leaf-top to reduce carry-over of eggs from the seedbed to the field.
How do mangoes control insects?
Swab Coal tar + Kerosene @ 1:2 or Carbaryl 50 WP 20 g / l (basal portion of the trunk – 3 feet height) after scraping the loose bark to prevent oviposition by adult beetles. Padding with monocrotophos 36 WSC 10 ml in 2.5 cm /tree soaked in absorbent cotton.
What is the best insecticide for stem borer?
Of the granular insecticides, furadan application proved to be the best both in controlling the attack of stem borer and leaf folder as well as better yield per acre, while among sprayable insecticides, nurelle-D proved better for the control of these pests.
What is the of nature of 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 biological control?
Biological control is the use of living organisms to suppress pest populations, making them less damaging than they would otherwise be. Natural enemies of insects play an important role in limiting the densities of potential pests.
How do you control borer stems naturally?
Introduce parasitic wasps before the eggs are laid, as wasps are borers’ natural enemy. You can cover crops with floating row covers to prevent egg laying, drape these row covers over frames. This will protect your plants from temperature extremities. Grow snake gourd as it is more resistant to Stem Borers.
How do mango trees control termites?
To prevent termite attack, the trees were treated with aldrin 30 EC at 0.06, 0.12 and 0.2 per cent, and heptachlor 6 per cent dust at 2.5, 3 and 4 g/tree compared to the application of sorghum earhead husk, sand, wood ash each at the base of the tree and swabbing the stem with coal tar.
What is borer resistant?
Borer proof plywood is remarkable for its incredible resistance to attacks by borers. This type of plywood is specifically designed, chemically treated, and crafted from high-quality timber to achieve this feat. Unlike traditional wood, these last for a long time.
What are the four types of biological control?
Types of Biological Control Agents. Natural enemies of insects and mites generally fall into four different types, or guilds, based on how they utilize their prey or hosts: predators, parasites, parasitoids, and pathogens.
How can stem borers be prevented?
Physical barriers can be an effective means of keeping squash vine borers at bay:
- Cover the plants’ stems with a barrier, such as strips of nylon stockings or aluminum foil, to prevent egg laying.
- Before flowers appear on the plants, use row covers to keep squash vine borers away.
What is the pathophysiology of mango shoot borer?
Caterpillars of the mango shoot borer penetrate developing inflorescences and tender leaf midribs or shoots, tunneling downwards the stem. Affected plant parts wilt and are susceptible to secondary infections by opportunistic pathogens.
How do you treat mango shoot borer?
Insecticides such as penthoate can also be used to control mango shoot borer. Regularly monitor the orchard for eggs, larvae, moths and pupae. Prune the affected plant parts and burn or bury them. Are you a plant disease expert?
What are the black moths on my mangoes?
Grayish-black moths of 8-10 mm size with brown wings. Caterpillars of the mango shoot borer penetrate developing inflorescences and tender leaf midribs or shoots, tunneling downwards the stem. Affected plant parts wilt and are susceptible to secondary infections by opportunistic pathogens.
How to manage mango Hopper pests?
Integrated pest management is gaining momentum to take care of these problems. To manage mango hopper pest, avoid dense planting and keep the orchard clean by regular ploughing and removal of weeds. Pruning of overcrowding and over lapping branches should be done on a regular basis.