Cucurbitaceae – Gramophone

How to control red spider in cucurbits crops

The heavy attack of this insect occurs before the monsoon.
Its infestation is more visible on the lower surface of the leaves.
This insect lays eggs near the veins of the leaves.
In heavy infestation of this insect, the leaf becomes bright yellow
For the control of this pest spray Propargite 57%EC @ 400 gram/acre or spiromesifen 22.9% SC @ 200 ml/acre or Abamectin 1.9% EC @ 150 ml/acre
Along with this, use Beauveria Bassiana @ 250 gram/acre as a biological treatment.

The red spider mites are 1 mm. long and can be difficult to see by necked eyes.
Spider mites live in colonies on the undersurface of leaves.
Larvae, nymphs and adults of mites lacerate leaves from under surface.
They suck the cell sap resulting in the production of white patches between Vines and leaves.

31/12/2018

Soil requirement for muskmelon –

Muskmelon can be cultivated on wide range of soils.
cultivation is best suited on sandy loam/light textured, warm, well-drained soils with high organic matter. High yield within organic matter.
High yield with good flavor can be expected with soil pH 6.0 to 7.0.
Soil temperature below 15°C slow the seed germination and growth.
Alkaline soil with high salt concentration is not suitable for cultivation.

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16/01/2018

Management of Red Spider Mites in Cucurbitaceae:-

Identification:-

The red spider mites are 1 mm. long and can be difficult to see by necked eyes.
Spider mites live in colonies on the under surface of leaves.
A single colony may contain hundreds of individuals.
Eggs are spherical and translucent, like tiny droplets, becoming cream colored before hatching.
Adults have eight legs and an oval shaped body with two red eyespots near the head end of the body.
Females usually have a large, dark blotch on each side of the body and numerous bristles covering the legs and body.
Newly hatched larvae have only six legs.

Nature of Damage:-

Larvae, nymphs and adults of mites lacerate leaves from under surface.
They suck the cell sap resulting in production of white patches between vien and leaves.

Control:-

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14/01/2018

Downy Mildew in Cucurbitaceae

Symptoms:-

Control:-

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Red Pumpkin Beetle-

Identification-

Eggs are spherical in shape and yellowish pink in colour, changes in to orange after a couple of day.
Freshly hatched grubs are dirty white in colour where as fall grown ones are creamy yellow and about 22mm long.
Pupae are pale white and are found in earthen cells 15 to 25mm deep in the soil.
Adult beetles are 6-10mm long and having glistering red to yellowish brown elytra that are infirmly covered with fine punctures.

Damage-

The grubs feed on the roots and underground portion of host plants and fruits touching the soil.
The damaged roots and infested underground, portion of stems start rotting due to secondary infection by saproliytic fungi, and the unripe fruits of such vines dry up.
Infested fruits become unfit for human consumption.
Adult beetles feed voraciously on leaf lamina making irregular holes.
They prefer young seedling and tender leaves and damage may even kill the seedlings.

Control-

As insect pupate in the soil, deep ploughing soon after the crop exposes and kill grubs and pupae.
Apply Cartap hydrochloride 3 G granule 3-4cm deep in soil near base of germinated seedlings.
Spray the crop with Cypermethrin 25% EC (1 ml/lit) +Dimethoat 30% EC (2 Ml/litre ) or Carbaryl 50% WP (3 gm/Litre) of water at fortnight intervals starting from 25 days after transplanting to control the pest.

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