Mango seed weevil poster - dpir.nt.gov.au• Target adults with chemical controls during emergence,...
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Delivering Mango Technology Acknowledgements: Matthew Weinert, Rowland Holmes, Leonie Wittenberg, Bruno Pinese, Chris Freebairn, Deanna Chin, Ian Bally, Danora Buschkens and Michael Neal Melissa Frazer for graphic design of poster Egg of mango seed weevil Mating Egg laying scars Adults move from the trunk towards the outer canopy and mate at flowering Eggs are laid when fruit reach 30mm Egg laying needs warm weather and can be continuous Pupa Adult emerged from seed pupa larva adult Weevils develop in seeds Adults emerge from seeds left on ground following rain or watering Life cycle Life cycle vs vs crop cycle crop cycle Background Background • The presence of mango seed weevil reduces market options • Fruit from mango seed weevil free orchards can access markets in Western Australia as well as China, Korea, the United States of America or the United Arab Emirates • Weevils move between orchards in infested seed and can spread though orchard by flying • Unmanaged trees and fruit dumps are an additional source of weevil infestation Monitoring for mango seed weevil Monitoring for mango seed weevil • Adults are hard to find • Check for adults under bark during winter • Check for feeding damage on new flushes • Look for the presence of eggs on fruit • Cut fruit and seeds at harvest to look for larvae Control options Control options • Remove all fruit from orchards • Destroy reject fruit; remove from farms • Mulch fallen fruit and prunings before weevils emerge • Target adults with chemical controls during emergence, flushing, fruiting and on trunks • Target emerging larvae on fruit with systemic chemicals Adults are active at dawn and dusk feeding on new flush Adults shelter under rough bark on the trunk and main leaders Sheltering under rough bark Feeding damage Adult mango seed weevil Eggs of the weevil hatch and larvae enter seed Young larvae in mango seed Hatched larva of weevil on mango skin adults emerge from seeds, feed on flush and shelter in bark adults mate egg laying larval development larvae pupate 12 months Flowering Fruit development Harvest Managing Mango Seed Weevil Managing Mango Seed Weevil
Transcript of Mango seed weevil poster - dpir.nt.gov.au• Target adults with chemical controls during emergence,...
Delivering Mango Technology
Acknowledgements: Matthew Weinert, Rowland Holmes, Leonie Wittenberg, Bruno Pinese, Chris Freebairn, Deanna Chin, Ian Bally, Danora Buschkens and Michael NealMelissa Frazer for graphic design of poster
Egg of mango seed weevil
Mating
Egg laying scars
Adults move from the trunk towardsthe outer canopy and mate at floweringEggs are laid when fruit reach 30mm
Egg laying needs warm weather and can be continuous
Pupa
Adult emerged from seed
pupa larva adult
Weevils develop in seedsAdults emerge from seeds left on ground following
rain or watering
Life cycle Life cycle vsvscrop cyclecrop cycle
BackgroundBackground• The presence of mango seed weevil reduces market
options• Fruit from mango seed weevil free orchards can access
markets in Western Australia as well as China, Korea, the United States of America or the United Arab Emirates
• Weevils move between orchards in infested seed and can spread though orchard by flying
• Unmanaged trees and fruit dumps are an additional source of weevil infestation
Monitoring for mango seed weevilMonitoring for mango seed weevil• Adults are hard to find• Check for adults under bark during winter• Check for feeding damage on new flushes• Look for the presence of eggs on fruit• Cut fruit and seeds at harvest to look for
larvae
Control optionsControl options• Remove all fruit from orchards• Destroy reject fruit; remove from farms• Mulch fallen fruit and prunings before weevils emerge• Target adults with chemical controls during emergence,
flushing, fruiting and on trunks• Target emerging larvae on fruit with systemic chemicals
Adults are active at dawn and dusk feeding on new flushAdults shelter under rough bark on the
trunk and main leaders
Sheltering under rough bark
Feeding damageAdult mango seed weevil
Eggs of the weevil hatchand larvae enter seed
Young larvae inmango seed
Hatched larva of weevil on
mango skin
adults emerge from seeds, feedon flush and shelter in bark
adults mate
egg laying
larval development
larvae pupate
12 months
Flowering
Fruit development
Harvest
Managing Mango Seed WeevilManaging Mango Seed Weevil
