(IPPM) in Vegetables - Vegetableipmasia.org

Resource Manual on IPPM in Vegetable
World Education Philippines, Inc.
This immature stage of jumping spiders feeds on a winged ant. It is common for
predators to feed on other predators during periods when populations of plant-feeding
insects are not available. This helps to maintain predator populations in the crop until
potential pests arrive.
Name: Carrhotus barbatus (Karsch)
Family: Salticidae
Order: Araneae
Jumping spiders actively stalk their prey and do not rely on webbuilding
for prey capture.
Name: Siler sp. (Figure 207)
Family: Salticidae
Order: Araneae
This shows a larva of a leaf-feeding looper being eaten by a
female jumping spider. As a result, looper larvae rarely
reach population levels that can cause crop losses.
Name: Crustulina sp. (Figure 208)
Family: Theridiidae
Order: Araneae
This comb-footed spider is feeding on an adult leafminer fly,
Liriomyza sp. (Diptera: Agromyzidae) captured earlier on
bean leaves and held down by silken threads.
Name: Oxyopes sp. (Figure 209)
Family: Oxyopidae
Order: Araneae
This female lynx spider is devouring a young armyworm.
Name: Pardosa sp. (Figure 210)
Family: Lycosidae
Order: Araneae
These spiders are excellent hunters both on the ground and
in the plant canopy. Each female produces 100 eggs in
one cocoon. Females carry their young on their back. The
females chew the cocoon to soften it, thereby providing
food for nourishment of newly- hatched spiderlings.
PARASITOIDS
Parasitoids are considered to be very important in checking populations of potential
insect pests from reaching pest status. They are mostly host-specific than insect or spider
predators and need only an individual host to complete their development to adulthood.
Often, more than one parasitoid can develop and emerge from a single host. In general,
parasitoids are much more sensitive to pesticides than are predators.
129