The document discusses several pests that affect cucurbit crops, including the leafroller (Diaphania indica), melon fly (Bactrocera cucurbitae), and squash beetle (Aulachophora sp.). It describes the life cycles and appearance of these pests. It also provides several management strategies, such as removing infested fruits, using plastic mulch to control leafminer pupae, applying wood ash to control squash beetles, and maintaining sanitation to reduce pests.

1. Pests (Cucurbit) & their
Management*

2. Leafroller - Diaphania indica
• rolls the leaves
• prefers leafy, soft and dense
vegetation

3. larva on fruit
adult
Leafroller - Diaphania indica

4. Larval parasite of Leafroller
• the parasite comes out of
the larvae to pupate
• produces cocoon to protect
itself from enemies

5. Larval parasite of Leafroller
Opius sp.

6. Melon fly, B. cucurbitae (Coquillett), is one of
the world’s most serious fruit fly pests,
particularly on cucurbits.
Melon fly, Bactrocera cucurbitae (Coquillett).

7. Melon fly, Bactrocera cucurbitae (Coquillett).

8. Adult
Assitgen ti agmonitor tapno maliklikan ti panagadu
da. Pinis-it ko dagiti igges idi bassitda pay laeng,
ken nag-sprey ak iti “Halt” kadagiti babassit nga
igges
Leaf roller, Diaphania indica

9. Sanitation – the surrounding of the area must be
weed-free
Remove the yellowing leaves
Wastes will be used as compost material
Management of Insect Pests

10. Collect all infested fruits
and decompose in plastic
bags
Melon fly, Bactrocera cucurbitae (Coquillett).

11. Squash Beetle, Aulachophora sp.
• chewing adult
• dusting wood ash

12. Management of leafminer (jet) in watermelon
• When using plastic mulch, the pupae drops to the mulch
and it dries up, eaten by spiders and other predators
• When about to pupate, it comes out of the leaf and
fall to the ground
• Larvae gets inside the leaf epidermis and feed on the
tissue

13. Peste na Insekto (Aplat)
Leaves with sooty
molds