Focuses on DIFFERENT PESTS OF GUAVA. it also deals with symptoms and management of pests related to guava.

1. PESTS OF GUAVA

2. DIFFERENT PESTS OF GUAVA
GUAVA FRUIT FLY
BARK EATING CATERPILLARS
SAP FEEDERS
GREEN SCALE
TAILED MEALY BUG
FRUIT BORER

3. GUAVA FRUIT FLY
Causal Organism-Bactrocera diversus
SYMPTOMS
 Discolored semi liquid mass
 Oviposition punctures on fruits
 Maggots destroy & convert pulp into
a bad smelling ones
MANAGEMENT
 Collect & destroy fallen fruits
 Use of Malathion @0.05%
 Summer plough to expose pupa

4. BARK EATING CATERPILLARS
Causal Organism-Indarbella spp.
SYMPTOMS
 Young trees may succumb to the attack
 Caterpillars bore into the trunk
 Caterpillars remain hidden during day time & come
out at night
MANAGEMENT
 Remove & destroy dead & infected branches
 Scraping the loose bark to prevent oviposition by
adult beetles
 Apply carbofuran 3G 5g per hole & plug with mud

5. SAP FEEDERS
Causal Organism-Tea mosquito bug
SYMPTOMS
 Corky scab formation on fruits
 Elongate streaks & patches develop
on shoots
 Brownish black necrotic patch develop
on foliage
 Nymphs & adults make puncture on petiole,tender
shoots & fruits
MANAGEMENT
 Collect & damage the infected part
 Use of malathion 50 EC @ 0.02% at
bimonthly interval at the time of flowering

6. GREEN SCALE
Causal Organism-Coccus viridis
SYMPTOMS
 Yellowing of leaves
 Nymphs & adults suck sap from the leaves
MANAGEMENT
 Prune & destroy the infested shoots
at initial stage of infestation
 Spray monocrotophos @ 1ml/lt
 Realising predators beetle
viz. C.montrouzieri beetle
 Encourage parasitoides viz. C.bogoriensis

7. TAILED MEALY BUG
Causal Organism-Ferrisa virgata
SYMPTOM
 Premature dropping of fruit
MANAGEMENT
 Release Cryptolaemous montrozieri beetle @ 10/tree
 Application of trizophos 2ml + neem oil 5ml/lt

8. SPIRALING WHITE FLY
Causal Organism-Aleurodicus dispersus
SYMPTOMS
 Yellowing of leaves
 Dropping of affected leaves
 Nymphs & adults suck sap from the leaves
MANAGEMENT
 Field sanitation
 Removal of host plants
 Installation of yellow sticky traps
 Application of trizophos 40 EC@ 0.06%

9. FRUIT BORER
Causal Organism-Congethes punctiferalis,
Deudorix isocrates, Rapala varuna
SYMPTOMS
Caterpillar bores into young
fruits
Fruits dry up & fall without
ripening
MANAGEMENT
Collect & destroy damaged
fruits
Clean cultivation
Application of malathion @0.1%