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Evolution and InnovationSave Biodiversity...Rise

Plums

Crop: Plum, S.N: Prunus salicina, Family: Rosaceae

 

PLUM PESTS :

Plum weevil, Amblyrrhinus oricollis

Symptoms of damage
  • Adult beetle feed on upper epidermis of fresh

    and tender leaves, leaving behind only the net work of veins
Plum weevil - larva Plum weevil - Adult

Plum beetle, Anomala lineatipennis

Symptoms of damage
  • Adult beetle feed on leaves and fruits


Identification of pest
  • Dark green beetle with yellowish brown elytra


Management
  • Collect and destroy infested plant parts along with weevils and beetles
  • Spray carbaryl 50 WP 0.1% or dust lindane 1.3 D at 25 kg/ha on foliage as soon as adults appear

San jose scale, Quadraspidiotus perniciosus

Symptoms of damage
  • Infestation causes purple discolouration on fruits and make them unfit for marketing
  • Infestation of shoots results in loss of vigour and death of young trees or branches
  • Fruit with haloes will be culled because of its unsightly appearance.
Purple discolouration - fruits Purple discolouration - stems


Identification of pest
  • Female scale is yellowish orange, round, slightly convex and raised a little at the centre with a black pustule
  • Males are small and more linear shape


Management
  • Select nursery stock free from scale infestation
  • Fumigate nursery stocks with HCN gas or methyl bromide
  • Spray application of systemic insecticides like phosalone 0.05%, fenitrothion 0.05% and methyl demeton 0.025%
  • Field release of coccinellid predators likeChilocorus nigritus and parasitoid Encarsia perniosi
Chilocorus nigritus   Encarsia perniosi

Peach borer, Sphenoptera lafertei

Symptoms of damage
  • Beetle feed on leaves
  • Young grubs bore into and feed inside bark and make irregular galleries
  • Gum globules appear at the points of entrance on bark


Management
  • Collect and destroy the damaged shoots and branches
  • Swab trunk with carbaryl 50 WP at 0.2%
  • Spray malathion 0.1% .
  • Field release of some natural enemies like gray field antFormica aerata, chalcid wasps, Copidosoma (=Paralitomastix) varicornis and Hyperteles lividus,
  • Spray application of Bacillus thuringiensis (BT) products have been effective if applied when larvae are first noticed and before they tunnel into twigs, buds or fruit.
  • Spray application of following insecticides
Timing Product
pink (peach) Azinphos-methyl (Guthion or Sniper 50WP)

or phosmet (Imidan 50%WP)
petal-fall

(peach and apricot)
Thiodan, Guthion, Sniper, Imidan
petal-fall

peach only
or deltamethrin (Decis 5 EC)
husk-fall

(apricot)
Thiodan, Guthion, Sniper or Imidan
summer

(apricot and peach)
Thiodan, Guthion, Sniper, or Imidan

SOURCE

www.ipm.ucdavis.edu, www.apidweb.com, ag.arizona.edu

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