Mango shoot caterpillar
Damage
Larvae feed on the growth flushes at the nursery stock, young trees, and top-worked trees. Occasionally, the fruit stalks and young fruits are damaged. The sudden death of a part of a branch, crackedbranch, and falling off of a branch are indications of the attack.
Description
The eggs are lemon-colored and are laid singly on both leaf surfaces on new growths. They hatch n 3 - 5 days.
The larva is light to pale-green with purple dots that sometimes has the same color as that of the young tender leaves. The larval development takes about 8 - 10 days.
Pupae are dark-brown with no distinguishing lumps or lobes. It is found among the soil debris or near the soil surface. Pupation takes about 16 – 20 days
Adult moths are russet-brown with light-brown markings across the forewings and have a wingspan of 25 mm. The forewings are dull-purple with several darker stripes, including a dark-gray purple spot near the apical end while the hindwings are white with a broad smoky-brown or purple-gray margin.
Control measures
Physical control
Prune the affected plant parts and then burn or
bury them
Plant extracts
Ginger, garlic, and chilli extract
Ginger, garlic, and chilli extract Method of preparation Soak 50 g of peeled garlic overnight in 10 ml mineral oil. Combine garlic, 25 g of green chilies, and 25 g of ginger. Add 50 ml of water to the mixture. Grind them. Add 3 liters of water. Pests controlled Aphids Armyworm Cotton bollworm Caterpillars Corn earworm Fruit borers Leafminers Shoot borers Thrips Tomato fruitworm Whiteflies |
Neem leaf extract Method of preparation Pound gently 1-2 kg of neem leaves. Place in a pot. Add 2-4 liters of water. Cover the mouth of the pot securely with the cloth and leave it as such for 3 days. Strain to get clear extract. Dilute 1 liter of neem leaf extract with 9 liters of water. Add 100 ml of soap. Stir well. Pests controlled Aphids Grasshoppers Grubs Japanese beetles Leafhoppers Locusts Plant hoppers Scales Snails Thrips Weevils Whiteflies |
Mango tip borer
Damage
The larvae feed on the fruiting twigs and panicles. They bore into and/or near the tips of the young shoots and tunnel their way to the basal parts causing the tips to shrink and dry-up
Description
Eggs are creamy-white that are found on the flower stem and young shoots. They hatch after 3 - 7 days.
The larva is pale-green and locates itself in the tunnel it bores. It comes out to feed on soft and tender tissues of new growths. The larval period is 8 - 10 days.
Pupa is brown and found among the plant debris and on the upper portion of the soil.
The adult is grayish-black and about 8-10 mm in size. Both sexes have the same body characteristics except that the male has a black ventral portion on its abdominal segments.
Control measures
Physical control
Prune the affected plant parts and then burn or bury them
Plant extracts Ginger, garlic, and chilli extract (refer to p. 13) Neem powdered seed extract Method of preparation Add 50 grams of powdered kernel in 1 liter of water. Let it stand for 6 hours but not more than 16 hours. Add soap and stir. Constantly shake the container or stir the extract while on the process of application. Pests controlled Aphids American bollworms Cotton leaf rollers Diamondback moths Grasshoppers Leafhoppers Leafminers Red locusts Mexican bean beetles Whiteflies |
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